CN104829756A - Solid catalyst component for olefin polymerization, and preparation method and application thereof - Google Patents
Solid catalyst component for olefin polymerization, and preparation method and application thereof Download PDFInfo
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Abstract
The invention discloses a solid catalyst component for olefin polymerization. The solid catalyst component comprises magnesium halide (1), a titanium active component (2) and a 2-alkoxy benzoate compound (3); the structural general formula of the 2-alkoxy benzoate compound is represented by the formula 1; in the formula 1, R1 and R2 are same or different and are independently selected from alkyl containing 1-12 carbon atoms and naphthenic base, aryl or aralkyl containing 3-8 carbon atoms; and R3, R4, R5 and R6 are same or different and are independently selected from hydrogen, alkyl containing 1-8 carbon atoms and naphthenic base, aryl or aralkyl containing 3-8 carbon atoms. The solid catalyst component, aluminium alkyl and a silane compound form a catalyst for olefin polymerization (copolymerization) so as to obtain a polymer having high activity and high isotacticity.
Description
Technical field
The present invention relates to a kind of solid catalyst component for olefine polymerization and its preparation method and application, particularly relate to a kind of ingredient of solid catalyst containing 2-alkoxybenzoic acid ester compound and its preparation method and application.
Background technology
Polypropylene, as a kind of general-purpose plastics, has a wide range of applications in the various industry such as injection moulding, crowded pipe, blown film, coating, spray silk, modified engineered plastic and civilian field of plastic products, has become product with the fastest developing speed in five large resins for universal use.The basic reason impelling polypropylene industrial to develop rapidly is that catalyzer and polymerization technique are constantly weeded out the old and bring forth the new, and polypropylene product innovation is continued to bring out, and has greatly expanded polyacrylic Application Areas.Nowadays industrial application the most widely catalyst for polymerization of propylene be Ziegler-Natta catalyst.The component of conventional Ziegler-Natta catalyst is to form olefin polymerization catalysis by the contact of magnesium compound, titanium compound, halogenide and electron donor.Usually, the electron donor added in catalyst preparation process is diester compound, as Chinese patent CN85100997A and CN1172966C.When there being particular requirement to product, also need to add external donor compound.
In above-mentioned traditional catalyzer, internal electron donor is one of requisite composition of catalyst component, internal electron donor add the catalytic activity that can improve catalyzer, polyacrylic degree of isotacticity even gives polypropylene special premium properties.At present, polytype interior Donor compound is disclosed in a large number, such as, polycarboxylic acid, monocarboxylic ester or multi-carboxylate, acid anhydrides, ketone, monoether or polyether, alcohol, amine etc. and derivative thereof, see patent EP361494, CN1092670, CN1539857, CN1670043, CN1236374, CN1306544, CN1313869, CN1714105, CN1552741, CN1580034, CN1580035, CN1580033.Wherein, the catalyzer prepared using diether compounds as internal electron donor generally has higher catalytic activity, see patent CN1092670, CN1463274, CN1553921, CN1539857, EP361494, but the shortcoming that this kind of catalyzer one of existing is larger is that the defect of gained PP molecular chain is more, is unfavorable for producing high-performance polymer.
Summary of the invention
In order to the advantage in conjunction with diester class internal electron donor and two ethers internal electron donors, the this patent design and synthesis internal electron donor of a series of 2-alkoxybenzoic acid ester compound as catalyst for olefines polymerizing, the structure containing an ehter bond and ester group in this compound.When the catalyzer containing above-mentioned internal electron donor being used for olefinic polymerization (particularly propylene polymerization), obtain higher catalytic activity, and prepare the polyolefine (particularly polypropylene) had compared with high isotactic.
Technical scheme of the present invention realizes in the following way:
A kind of solid catalyst component for olefine polymerization, it comprises (1) magnesium halide, (2) titanium active ingredient and (3) 2-alkoxybenzoic acid ester compound as shown in Equation 1:
Wherein R
1, R
2identical or different, be selected from the alkyl of 1-12 carbon atom separately by oneself, the cycloalkyl of 3-8 carbon atom, aryl or aralkyl;
R
3, R
4, R
5, R
6identical or different, be selected from hydrogen by oneself separately, the alkyl of 1-8 carbon atom, the cycloalkyl of 3-8 carbon atom, aryl or aralkyl.
According to the present invention, preferred R
1, R
2identical or different, be selected from the alkyl of 1-6 carbon atom separately by oneself, the cycloalkyl of 3-8 carbon atom, aryl or aralkyl, more preferably R
1, R
2identical or different, be selected from the alkyl of 1-4 carbon atom separately by oneself, the cycloalkyl of 3-8 carbon atom, aryl or aralkyl.
According to the present invention, preferred R
3, R
4, R
5, R
6identical or different, be selected from hydrogen by oneself separately, the cycloalkyl of the alkyl of 1-6 carbon atom and 3-8 carbon atom; More preferably R
3, R
4, R
5, R
6identical or different, be selected from hydrogen by oneself separately, the alkyl of 1-4 carbon atom.
Particularly, R
1, R
2be selected from methyl independently of one another, ethyl, n-propyl, sec.-propyl, normal-butyl, isobutyl-, the tertiary butyl, n-pentyl, isopentyl, n-hexyl, cyclohexyl, cyclopentyl, cyclobutyl, cyclopropyl, phenyl, benzyl, 2-methyl-benzyl, 3-methyl-benzyl, 2-Ethylbenzyl, 2,3-dimethyl benzyl etc.More preferably, as methyl, ethyl, n-propyl, sec.-propyl, normal-butyl, isobutyl-, the tertiary butyl.
R
3, R
4, R
5, R
6be selected from hydrogen independently of one another, methyl, ethyl, n-propyl, sec.-propyl, normal-butyl, isobutyl-, the tertiary butyl, n-pentyl, isopentyl, n-hexyl, isohexyl, cyclohexyl, cyclopentyl.More preferably, as hydrogen, methyl, ethyl, n-propyl, sec.-propyl, isobutyl-, the tertiary butyl, normal-butyl.
According to the present invention, described cycloalkyl can be suberyl, cyclohexyl, cyclopentyl, cyclobutyl, cyclopropyl.
According to the present invention, described aryl is the aryl of 6-14 carbon atom, such as phenyl or naphthyl.
According to the present invention, the aryl in described aralkyl is described above, and described alkyl is the alkyl of 1-8 carbon atom, be preferably 1-6 carbon atom, be more preferably 1-4 carbon atom, such as methyl, ethyl, n-propyl, sec.-propyl, normal-butyl, isobutyl-, the tertiary butyl, n-pentyl, isopentyl, n-hexyl, isohexyl etc.
According to the present invention, the 2-alkoxybenzoic acid ester compound contained by ingredient of solid catalyst shown in formula 1 can be single compound, also can be their mixture.
According to the present invention, the preferred compound of formula 1 is selected from O-Anisic Acid methyl esters, O-Anisic Acid ethyl ester, O-Anisic Acid propyl ester, O-Anisic Acid isopropyl ester, O-Anisic Acid butyl ester, O-Anisic Acid isobutyl ester, the O-Anisic Acid tert-butyl ester, 2-ethoxy-benzoic acid methyl ester, 2-ethyl p-ethoxybenzoate, 2-ethoxy benzonitrile propyl propionate, 2-ethoxy benzonitrile isopropyl propionate, 2-ethoxy benzonitrile acid butyl ester, 2-ethoxybenzoic acid isobutyl ester, 2-ethoxy benzonitrile tert-butyl acrylate, 2-propoxy benzoic acid methyl esters, 2-propoxy benzoic acid ethyl ester, 2-propoxy benzoic acid propyl ester, 2-propoxy benzoic acid isopropyl ester, 2-propoxy benzoic acid butyl ester, 2-propoxy benzoic acid isobutyl ester, the 2-propoxy benzoic acid tert-butyl ester, 2-isopropoxy methyl benzoate, 2-isopropoxy ethyl benzoate, 2-isopropoxy propyl benzoate, 2-isopropoxy isopropyl benzoate, 2-isopropoxy butyl benzoate, 2-isopropoxy isobutyl benzoate, 2-isopropoxy t-butyl perbenzoate, 2-isobutoxy methyl benzoate, 2-isobutoxy ethyl benzoate, 2-isobutoxy propyl benzoate, 2-isobutoxy isopropyl benzoate, 2-isobutoxy butyl benzoate, 2-isobutoxy isobutyl benzoate, 2-isobutoxy t-butyl perbenzoate, 2-butoxybenzoic acid methyl esters, 2-butoxybenzoic acid ethyl ester, 2-butoxybenzoic acid propyl ester, 2-butoxybenzoic acid isopropyl ester, 2-butoxybenzoic acid butyl ester, 2-butoxybenzoic acid isobutyl ester, the 2-butoxybenzoic acid tert-butyl ester, 2-methoxyl group-3-methyl toluate, 2-methoxyl group-3-methylbenzoic acid ethyl ester, 2-methoxyl group-3-methyl benzoic acid propyl ester, 2-methoxyl group-3-methyl benzoic acid isopropyl ester, 2-methoxyl group-3-methyl benzoic acid butyl ester, 2-methoxyl group-3-methyl benzoic acid isobutyl ester, 2-methoxyl group-3-methylbenzoate, 2-ethyoxyl-3-methyl toluate, 2-ethyoxyl-3-methylbenzoic acid ethyl ester, 2-ethyoxyl-3-methyl benzoic acid propyl ester, 2-ethyoxyl-3-methyl benzoic acid isopropyl ester, 2-ethyoxyl-3-methyl benzoic acid butyl ester, 2-ethyoxyl-3-methyl benzoic acid isobutyl ester, 2-ethyoxyl-3-methylbenzoate, 2-propoxyl group-3-methyl toluate, 2-propoxyl group-3-methylbenzoic acid ethyl ester, 2-propoxyl group-3-methyl benzoic acid propyl ester, 2-propoxyl group-3-methyl benzoic acid isopropyl ester, 2-propoxyl group-3-methyl benzoic acid butyl ester, 2-propoxyl group-3-methyl benzoic acid isobutyl ester, 2-propoxyl group-3-methylbenzoate, 2-isopropoxy-3-methyl toluate, 2-isopropoxy-3-methylbenzoic acid ethyl ester, 2-isopropoxy-3-methyl benzoic acid propyl ester, 2-isopropoxy-3-methyl benzoic acid isopropyl ester, 2-isopropoxy butyl benzoate, 2-isopropoxy isobutyl benzoate, 2-isopropoxy t-butyl perbenzoate, 2-isobutoxy-3-methyl toluate, 2-isobutoxy-3-methylbenzoic acid ethyl ester,2-isobutoxy-3-methyl benzoic acid propyl ester, 2-isobutoxy-3-methyl benzoic acid isopropyl ester, 2-isobutoxy-3-methyl benzoic acid butyl ester, 2-isobutoxy-3-methyl benzoic acid isobutyl ester, 2-isobutoxy-3-methylbenzoate, 2-butoxy-3-methyl toluate, 2-butoxy-3-methylbenzoic acid ethyl ester, 2-butoxy-3-methyl benzoic acid propyl ester, 2-butoxy-3-methyl benzoic acid isopropyl ester, 2-butoxy-3-methyl benzoic acid butyl ester, 2-butoxy-3-methyl benzoic acid isobutyl ester, 2-butoxy-3-methylbenzoate, 2-methoxyl group-3, 5-methyl toluate, 2-methoxyl group-3, 5-methylbenzoic acid ethyl ester, 2-methoxyl group-3, 5-methyl benzoic acid propyl ester, 2-methoxyl group-3, 5-methyl benzoic acid isopropyl ester, 2-methoxyl group-3, 5-methyl benzoic acid butyl ester, 2-methoxyl group-3, 5-methyl benzoic acid isobutyl ester, 2-methoxyl group-3, 5-methylbenzoate, 2-ethyoxyl-3, 5-methyl toluate, 2-ethyoxyl-3, 5-methylbenzoic acid ethyl ester, 2-ethyoxyl-3, 5-methyl benzoic acid propyl ester, 2-ethyoxyl-3, 5-methyl benzoic acid isopropyl ester, 2-ethyoxyl-3, 5-methyl benzoic acid butyl ester, 2-ethyoxyl-3, 5-methyl benzoic acid isobutyl ester, 2-ethyoxyl-3, 5-methylbenzoate, 2-propoxyl group-3, 5-methyl toluate, 2-propoxyl group-3, 5-methylbenzoic acid ethyl ester, 2-propoxyl group-3, 5-methyl benzoic acid propyl ester, 2-propoxyl group-3, 5-methyl benzoic acid isopropyl ester, 2-propoxyl group-3, 5-methyl benzoic acid butyl ester, 2-propoxyl group-3, 5-methyl benzoic acid isobutyl ester, 2-propoxyl group-3, 5-methylbenzoate, 2-isopropoxy-3, 5-methyl toluate, 2-isopropoxy-3, 5-methylbenzoic acid ethyl ester, 2-isopropoxy-3, 5-methyl benzoic acid propyl ester, 2-isopropoxy-3, 5-methyl benzoic acid isopropyl ester, 2-isopropoxy-3, 5-methyl benzoic acid butyl ester, 2-isopropoxy-3, 5-methyl benzoic acid isobutyl ester, 2-isopropoxy-3, 5-methylbenzoate, 2-isobutoxy-3, 5-methyl toluate, 2-isobutoxy-3, 5-methylbenzoic acid ethyl ester, 2-isobutoxy-3, 5-methyl benzoic acid propyl ester, 2-isobutoxy-3, 5-methyl benzoic acid isopropyl ester, 2-isobutoxy-3, 5-methyl benzoic acid butyl ester, 2-isobutoxy-3, 5-methyl benzoic acid isobutyl ester, 2-isobutoxy-3, 5-methylbenzoate, 2-butoxy-3, 5-methyl toluate, 2-butoxy-3, 5-methylbenzoic acid ethyl ester, 2-butoxy-3, 5-methyl benzoic acid propyl ester, 2-butoxy-3, 5-methyl benzoic acid isopropyl ester, 2-butoxy-3, 5-methyl benzoic acid butyl ester, 2-butoxy-3, 5-methyl benzoic acid isobutyl ester, 2-butoxy-3, 5-methylbenzoate,2-methoxyl group-3, 4, 5, 6-methyl toluate, 2-methoxyl group-3, 4, 5, 6-methylbenzoic acid ethyl ester, 2-methoxyl group-3, 4, 5, 6-methyl benzoic acid propyl ester, 2-methoxyl group-3, 4, 5, 6-methyl benzoic acid isopropyl ester, 2-methoxyl group-3, 4, 5, 6-methyl benzoic acid butyl ester, 2-methoxyl group-3, 4, 5, 6-methyl benzoic acid isobutyl ester, 2-methoxyl group-3, 4, 5, 6-methylbenzoate, 2-ethyoxyl-3, 4, 5, 6-methyl toluate, 2-ethyoxyl-3, 4, 5, 6-methylbenzoic acid ethyl ester, 2-ethyoxyl-3, 4, 5, 6-methyl benzoic acid propyl ester, 2-ethyoxyl-3, 4, 5, 6-methyl benzoic acid isopropyl ester, 2-ethyoxyl-3, 4, 5, 6-methyl benzoic acid butyl ester, 2-ethyoxyl-3, 4, 5, 6-methyl benzoic acid isobutyl ester, 2-ethyoxyl-3, 4, 5, 6-methylbenzoate, 2-propoxyl group-3, 4, 5, 6-methyl toluate, 2-propoxyl group-3, 4, 5, 6-methylbenzoic acid ethyl ester, 2-propoxyl group-3, 4, 5, 6-methyl benzoic acid propyl ester, 2-propoxyl group-3, 4, 5, 6-methyl benzoic acid isopropyl ester, 2-propoxyl group-3, 4, 5, 6-methyl benzoic acid butyl ester, 2-propoxyl group-3, 4, 5, 6-methyl benzoic acid isobutyl ester, 2-propoxyl group-3, 4, 5, 6-methylbenzoate, 2-isopropoxy-3, 4, 5, 6-methyl toluate, 2-isopropoxy-3, 4, 5, 6-methylbenzoic acid ethyl ester, 2-isopropoxy-3, 4, 5, 6-methyl benzoic acid propyl ester, 2-isopropoxy-3, 4, 5, 6-methyl benzoic acid isopropyl ester, 2-isopropoxy-3, 4, 5, 6-methyl benzoic acid butyl ester, 2-isopropoxy-3, 4, 5, 6-methyl benzoic acid isobutyl ester, 2-isopropoxy-3, 4, 5, 6-methylbenzoate, 2-isobutoxy-3, 4, 5, 6-methyl toluate, 2-isobutoxy-3, 4, 5, 6-methylbenzoic acid ethyl ester, 2-isobutoxy-3, 4, 5, 6-methyl benzoic acid propyl ester, 2-isobutoxy-3, 4, 5, 6-methyl benzoic acid isopropyl ester, 2-isobutoxy-3, 4, 5, 6-methyl benzoic acid butyl ester, 2-isobutoxy-3, 4, 5, 6-methyl benzoic acid isobutyl ester, 2-isobutoxy-3, 4, 5, 6-methylbenzoate, 2-butoxy-3, 4, 5, 6-methyl toluate, 2-butoxy-3, 4, 5, 6-methylbenzoic acid ethyl ester, 2-butoxy-3, 4, 5, 6-methyl benzoic acid propyl ester, 2-butoxy-3, 4, 5, 6-methyl benzoic acid isopropyl ester, 2-butoxy-3, 4, 5, 6-methyl benzoic acid butyl ester, 2-butoxy-3, 4, 5, 6-methyl benzoic acid isobutyl ester, 2-butoxy-3, 4, 5, 6-methylbenzoate, 2-methoxyl group-3, 5-isopropyl acid methyl esters, 2-methoxyl group-3, 5-isopropyl acid ethyl ester,2-methoxyl group-3, 5-isopropyl acid propyl ester, 2-methoxyl group-3, 5-isopropyl acid isopropyl ester, 2-methoxyl group-3, 5-isopropyl acid butyl ester, 2-methoxyl group-3, 5-isopropyl acid isobutyl ester, 2-methoxyl group-3, the 5-isopropyl acid tert-butyl ester, 2-ethyoxyl-3, 5-isopropyl acid methyl esters, 2-ethyoxyl-3, 5-isopropyl acid ethyl ester, 2-ethyoxyl-3, 5-methyl benzoic acid propyl ester, 2-ethyoxyl-3, 5-isopropyl acid isopropyl ester, 2-ethyoxyl-3, 5-isopropyl acid butyl ester, 2-ethyoxyl-3, 5-isopropyl acid isobutyl ester, 2-ethyoxyl-3, the 5-isopropyl acid tert-butyl ester, 2-propoxyl group-3, 5-isopropyl acid methyl esters, 2-propoxyl group-3, 5-isopropyl acid ethyl ester, 2-propoxyl group-3, 5-isopropyl acid propyl ester, 2-propoxyl group-3, 5-isopropyl acid isopropyl ester, 2-propoxyl group-3, 5-isopropyl acid butyl ester, 2-propoxyl group-3, 5-isopropyl acid isobutyl ester, 2-propoxyl group-3, the 5-isopropyl acid tert-butyl ester, 2-isopropoxy-3, 5-isopropyl acid methyl esters, 2-isopropoxy-3, 5-isopropyl acid ethyl ester, 2-isopropoxy-3, 5-isopropyl acid propyl ester, 2-isopropoxy-3, 5-isopropyl acid isopropyl ester, 2-isopropoxy-3, 5-isopropyl acid butyl ester, 2-isopropoxy-3, 5-isopropyl acid isobutyl ester, 2-isopropoxy-3, the 5-isopropyl acid tert-butyl ester, 2-isobutoxy-3, 5-isopropyl acid methyl esters, 2-isobutoxy-3, 5-isopropyl acid ethyl ester, 2-isobutoxy-3, 5-isopropyl acid propyl ester, 2-isobutoxy-3, 5-isopropyl acid isopropyl ester, 2-isobutoxy-3, 5-isopropyl acid butyl ester, 2-isobutoxy-3, 5-isopropyl acid isobutyl ester, 2-isobutoxy-3, the 5-isopropyl acid tert-butyl ester, 2-butoxy-3, 5-isopropyl acid methyl esters, 2-butoxy-3, 5-isopropyl acid ethyl ester, 2-butoxy-3, 5-isopropyl acid propyl ester, 2-butoxy-3, 5-isopropyl acid isopropyl ester, 2-butoxy-3, 5-isopropyl acid butyl ester, 2-butoxy-3, 5-isopropyl acid isobutyl ester, 2-butoxy-3, the 5-isopropyl acid tert-butyl ester, 2-methoxyl group-3, 4, 5, 6-ethyl benzoate methyl esters, 2-methoxyl group-3, 4, 5, 6-ethylamino benzonitrile acetoacetic ester, 2-methoxyl group-3, 4, 5, 6-ethylamino benzonitrile propyl propionate, 2-methoxyl group-3, 4, 5, 6-ethylamino benzonitrile isopropyl propionate, 2-methoxyl group-3, 4, 5, 6-ethylamino benzonitrile acid butyl ester, 2-methoxyl group-3, 4, 5, 6-ethyl benzoate isobutyl ester, 2-methoxyl group-3, 4, 5, 6-ethylamino benzonitrile tert-butyl acrylate, 2-ethyoxyl-3, 4, 5, 6-ethyl benzoate methyl esters, 2-ethyoxyl-3, 4, 5, 6-ethylamino benzonitrile acetoacetic ester,2-ethyoxyl-3, 4, 5, 6-ethylamino benzonitrile propyl propionate, 2-ethyoxyl-3, 4, 5, 6-ethylamino benzonitrile isopropyl propionate, 2-ethyoxyl-3, 4, 5, 6-ethylamino benzonitrile acid butyl ester, 2-ethyoxyl-3, 4, 5, 6-ethyl benzoate isobutyl ester, 2-ethyoxyl-3, 4, 5, 6-ethylamino benzonitrile tert-butyl acrylate, 2-propoxyl group-3, 4, 5, 6-ethyl benzoate methyl esters, 2-propoxyl group-3, 4, 5, 6-ethylamino benzonitrile acetoacetic ester, 2-propoxyl group-3, 4, 5, 6-ethylamino benzonitrile propyl propionate, 2-propoxyl group-3, 4, 5, 6-ethylamino benzonitrile isopropyl propionate, 2-propoxyl group-3, 4, 5, 6-ethylamino benzonitrile acid butyl ester, 2-propoxyl group-3, 4, 5, 6-ethyl benzoate isobutyl ester, 2-propoxyl group-3, 4, 5, 6-ethylamino benzonitrile tert-butyl acrylate, 2-isopropoxy-3, 4, 5, 6-ethyl benzoate methyl esters, 2-isopropoxy-3, 4, 5, 6-ethylamino benzonitrile acetoacetic ester, 2-isopropoxy-3, 4, 5, 6-ethylamino benzonitrile propyl propionate, 2-isopropoxy-3, 4, 5, 6-ethylamino benzonitrile isopropyl propionate, 2-isopropoxy-3, 4, 5, 6-ethylamino benzonitrile acid butyl ester, 2-isopropoxy-3, 4, 5, 6-ethyl benzoate isobutyl ester, 2-isopropoxy-3, 4, 5, 6-ethylamino benzonitrile tert-butyl acrylate, 2-isobutoxy-3, 4, 5, 6-ethyl benzoate methyl esters, 2-isobutoxy-3, 4, 5, 6-ethylamino benzonitrile acetoacetic ester, 2-isobutoxy-3, 4, 5, 6-ethylamino benzonitrile propyl propionate, 2-isobutoxy-3, 4, 5, 6-ethylamino benzonitrile isopropyl propionate, 2-isobutoxy-3, 4, 5, 6-ethylamino benzonitrile acid butyl ester, 2-isobutoxy-3, 4, 5, 6-ethyl benzoate isobutyl ester, 2-isobutoxy-3, 4, 5, 6-ethylamino benzonitrile tert-butyl acrylate, 2-butoxy-3, 4, 5, 6-ethyl benzoate methyl esters, 2-butoxy-3, 4, 5, 6-ethylamino benzonitrile acetoacetic ester, 2-butoxy-3, 4, 5, 6-ethylamino benzonitrile propyl propionate, 2-butoxy-3, 4, 5, 6-ethylamino benzonitrile isopropyl propionate, 2-butoxy-3, 4, 5, 6-ethylamino benzonitrile acid butyl ester, 2-butoxy-3, 4, 5, 6-ethyl benzoate isobutyl ester, 2-butoxy-3, 4, 5, 6-ethylamino benzonitrile tert-butyl acrylate.
According to the present invention, wherein magnesium halide is selected from magnesium chloride, magnesium bromide and magnesium iodide, preferred magnesium chloride.
According to the present invention, the raw material wherein forming described titanium active ingredient is titanium compound, has structure as shown in Equation 2:
TiX
1 p(OR
1)
4-p
Formula 2
Wherein, p is expressed as the integer of 0-4;
X
1represent halogen atom, preferred chlorine or bromine; More preferably chlorine;
R
1for alkyl, it can be saturated or undersaturated alkyl, it can be the alkyl of straight chain, side chain or ring-type, heteroatoms can be contained, such as S, N, O, Si etc., be preferably alkyl (alkyl of the straight or branched more preferably containing 1-10 carbon atom), thiazolinyl, alkynyl, cycloalkyl (cycloalkyl more preferably containing 3-8 carbon atom), aryl, aralkyl etc.As two or more R of existence
1time, they can be identical or different.As R
1example have methyl, ethyl, n-propyl, sec.-propyl, normal-butyl, isobutyl-, sec-butyl, n-pentyl, n-hexyl, n-heptyl, n-octyl, positive decyl, allyl group, butenyl, cyclopentyl, cyclohexyl, cyclohexenyl, phenyl, benzyl, tolyl, styroyl etc.
Example as compound shown in above-mentioned formula 2 can be four titan-alkoxides, described alkyl is the alkyl of straight chain, side chain or ring-type, as tetramethoxy titanium, purity titanium tetraethoxide, four positive propoxy titaniums, tetraisopropoxy titanium, four titanium n-butoxide, four isobutoxy titaniums, four cyclohexyloxy titaniums etc.; Four aryloxy titaniums, as four phenoxide titaniums; Titanium tetrahalide, as titanium tetrachloride, titanium tetrabromide, titanium tetra iodide; Alkoxyl group three halogenated titanium, as methoxytitanium trichloride, oxyethyl group titanous chloride, positive propoxy titanous chloride, nbutoxytitanium trichloride, oxyethyl group titanium tribromide etc.; Dialkoxy dihalide titanium, as dimethoxy titanium dichloride, diethoxy titanium dichloride, diisopropoxy titanium dichloride, dipropoxy titanium dichloride, diethoxy dibrominated titanium etc.; Tri-alkoxy halogenated titanium, as trimethoxy titanium chloride, triethoxy titanium chloride, three isopropoxy titanium chlorides, three positive propoxy titanium chlorides, three n-Butoxyl titanium-chlorides etc.Wherein, preferred high halogen-containing titanium compound, especially titanium tetrachloride.
According to the present invention, in described solid catalyst component for olefine polymerization, titanium content is 0.5-4.5%, is preferably 1.5%-4%, is more preferably 2.0-3.5%; The weight content (ester content) of the 2-alkoxybenzoic acid ester compound (internal electron donor) shown in formula 1 is 1-15%, is preferably 1.5-6%, is more preferably 2-4%.
The present invention also provides a kind of preparation method's (first method) of solid catalyst component for olefine polymerization, and described method comprises the steps:
(1) preparation of magnesium halide alcohol adduct solution
In a nitrogen atmosphere magnesium halide (preferred anhydrous magnesium halide) and alcohol compound are stirred in alkane solvent and are uniformly dispersed, then add the mixed solution of the 2-alkoxybenzoic acid ester compound as shown in Equation 1 of titanate compound and part, react to obtain magnesium halide alcohol adduct solution;
Wherein each substituent definition as previously mentioned;
(2) preparation of ingredient of solid catalyst
Add a part of titanium compound in the reactor, magnesium halide alcohol adduct solution prepared by step (1) is added, after fully reacting, add remaining 2-alkoxybenzoic acid ester compound as shown in Equation 1, leach liquid after reaction, again add remaining titanium compound, liquid is leached after continuing reaction, with solvent wash, dry, obtained described ingredient of solid catalyst.
Wherein, in step (1), the mol ratio of alcohol compound and magnesium halide is 1-10:1, preferred 2-8:1, more preferably 3-6:1; Preferably, the mol ratio of 2-alkoxybenzoic acid ester compound and magnesium halide is 0.01-0.2:1, preferred 0.05-0.15:1, more preferably 0.08-0.1:1; Preferably, the molar weight of titanic acid ester consumption and 2-alkoxybenzoic acid ester compound is equal; Preferably, the ratio of alkane solvent and magnesium halide is 0.5-20mL:1g, and preferred 1-15mL:1g, more preferably 3-10mL:1g, be also more preferably 5-7mL:1g; The temperature of reaction is preferably 40-200 DEG C, preferred 60-180 DEG C, more preferably 80-150 DEG C; That reacts is preferably 1-6h total time; Obtained magnesium halide alcohol adduct solution is stable and uniform.
In step (1), described magnesium halide is magnesium chloride, magnesium bromide and magnesium iodide; Preferred Magnesium Chloride Anhydrous.
In step (1), described titanate compound is general formula Ti (OR)
4shown compound, wherein R is the alkyl of 1-8 carbon atom and the cycloalkyl of 3-8 carbon atom, preferred tetrabutyl titanate.
In step (1), described alkane solvent is preferably C
8-C
12alkane solvent.
In step (1), described alcohol compound is selected from the monohydroxy-alcohol of 1-10 carbon atom, preferred alcohol, propyl alcohol, butanols, 2-ethyl-hexanol.
Wherein, in step (2), concrete reaction is: in the reactor that nitrogen is fully replaced, add titanium compound, be cooled to-25-40 DEG C, magnesium halide alcohol adduct solution prepared by step (1) is added and wherein keeps low temperature to stir, progressively heat up after fully reacting; When temperature rises to 80-135 DEG C, adding with magnesium halide mol ratio is the 2-alkoxybenzoic acid ester compound as shown in Equation 1 of 0.01-0.2:1, and react 1-4 hour at such a temperature, after reaction terminates, leach liquid, again add titanium compound, at 80-135 DEG C of temperature, continue reaction 1-4 hour, then leach liquid, with solvent wash, drying, obtained described ingredient of solid catalyst.
In step (2), the volume ratio (ml:ml) of the titanium compound that first time adds and described magnesium halide alcohol adduct solution is 1-4:1, and the amount of the titanium compound that second time adds is identical with first time.Total amount and the magnesium halide mol ratio of the 2-alkoxybenzoic acid ester compound as shown in Equation 1 added for twice are 0.05-0.25:1.
The present invention also provides a kind of preparation method's (second method) of solid catalyst component for olefine polymerization, and described method comprises the steps:
(1) spheroidal particle (preferably prefabricated according to the method for Chinese patent CN94103454.2) or the alkoxyl magnesium spheroidal particle of magnesium halide alcohol adduct is prepared; Preferably, the magnesium halide in the spheroidal particle of described magnesium halide alcohol adduct is magnesium chloride, alcohol is ethanol; Preferably, described alkoxyl magnesium spheroidal particle is magnesium ethylate spheroidal particle;
(2) spheroidal particle of the magnesium halide alcohol adduct of step (1) or alkoxyl magnesium spheroidal particle are added to are equipped with in the reactor of titanium compound; heat up, add the 2-alkoxybenzoic acid ester compound as shown in Equation 1 of part, continue to heat up; add remaining 2-alkoxybenzoic acid ester compound as shown in Equation 1 again; leach liquid after reaction, then add titanium compound, after continuing reaction; filter out liquid; with solvent wash, dry, obtained described ingredient of solid catalyst.
In step (2), concrete reaction is: the spheroidal particle of the magnesium halide alcohol adduct of step (1) or alkoxyl magnesium spheroidal particle are added to-25-40 DEG C, fully replace through nitrogen, be equipped with in the reactor of titanium compound, after abundant stirring contact, start to heat up, adding when temperature rises to 40-80 DEG C with magnesium halide mol ratio is the 2-alkoxybenzoic acid ester compound as shown in Equation 1 of 0.01-0.2:1, continue to heat up, when temperature rises to 80-135 DEG C, continuing to add with magnesium halide mol ratio is the 2-alkoxybenzoic acid ester compound as shown in Equation 1 of 0.01-0.2:1, and react 1-4 hour at such a temperature, after reaction terminates, leach liquid, add titanium compound again, reaction 1-4 hour is continued at 80-135 DEG C of temperature, filter out liquid, with solvent wash, dry, obtained described ingredient of solid catalyst.
In step (2), the mass ratio of the titanium compound be equipped with in initial reaction device and described spheroidal particle is 10-30:1.
In step (2), total amount and the magnesium halide mol ratio of the 2-alkoxybenzoic acid ester compound as shown in Equation 1 added for twice are 0.05-0.25:1.
In step (2), when using alkoxyl magnesium spheroidal particle, concrete reaction is: be added to by alkoxyl magnesium spheroidal particle and be equipped with in the reactor of aromatic solvent, add the 2-alkoxybenzoic acid ester compound as shown in Equation 1 of titanium compound and part again, heat up, again add remaining 2-alkoxybenzoic acid ester compound as shown in Equation 1, liquid is leached after reaction, add aromatic solvent and titanium compound again, after continuing reaction, filter out liquid, with solvent wash, drying, obtained described ingredient of solid catalyst.
Preferably, described reaction is: alkoxyl magnesium spheroidal particle is added to-25-40 DEG C, fully replace through nitrogen, be equipped with in the reactor of aromatic solvent, add titanium compound more successively and with after the 2-alkoxybenzoic acid ester compound as shown in Equation 1 that magnesium halide mol ratio is 0.01-0.1:1 fully stirs and contacts, start to heat up, adding when temperature rises to 40-80 DEG C with magnesium halide mol ratio is the 2-alkoxybenzoic acid ester compound as shown in Equation 1 of 0.01-0.1:1, continue to heat up, heating is stopped when temperature rises to 80-135 DEG C, react 1-4 hour at such a temperature, after reaction terminates, leach liquid, add aromatic solvent and titanium compound again, reaction 1-4 hour is continued at 80-135 DEG C of temperature, filter out liquid, with solvent wash, dry, obtained described ingredient of solid catalyst.
In above-mentioned steps (2), the mass ratio of the titanium compound at every turn added at first and described alkoxyl magnesium spheroidal particle is 10-30:1.
In above-mentioned steps (2), total amount and the magnesium halide mol ratio of the 2-alkoxybenzoic acid ester compound as shown in Equation 1 added for twice are 0.05-0.20:1.
In above-mentioned steps (2), aromatic solvent is selected from the monocycle alkyl-substituted aromatic hydrocarbon of 6-12 atom, the halogenated aryl hydrocarbon containing 1-6 halo atom; Preferred toluene, ethylbenzene, isopropyl benzene etc.
In above-mentioned steps (2), second time adds fashionable, and the mass ratio of titanium compound and described alkoxyl magnesium spheroidal particle is 1-6:1, preferred 1-4:1; The volume ratio of aromatic solvent and titanium compound is 0 ~ 3:1, preferably 0 ~ 1:1.
According to the present invention, the titanium compound in above-mentioned two kinds of methods has general formula as shown in Equation 2,
TiX
1 p(OR
1)
4-p
Formula 2
Each substituting group definition as previously mentioned.
The present invention also provides following technical scheme:
A kind of catalyst system, comprises above-mentioned ingredient of solid catalyst of the present invention.This catalyst system can be used for olefinic polymerization, is preferably used for propylene polymerization.
According to the preferred technical solution of the present invention, its catalyst system comprises following component:
(1) above-mentioned ingredient of solid catalyst of the present invention;
(2) a kind of alkylaluminium cpd; With
(3) a kind of silane compound.
For alkylaluminium cpd of the present invention, although be not particularly limited, preferably containing alkyl, halogen, alkoxyl group and composition thereof.Particularly, trialkylaluminium, as trimethyl aluminium, triethyl aluminum, triisopropylaluminiuand, triisobutyl aluminium and trioctylaluminum; The monochlorinated aluminium of dialkyl group, aluminium as monochlorinated in diethyl, the monochlorinated aluminium of di-isopropyl, the monochlorinated aluminium of diisobutyl and the monochlorinated aluminium of dioctyl; Dialkyl group sesquichloride, as diethyl sesquichloride; Chain aikyiaiurnirsoxan beta, as methylaluminoxane etc.In these alkylaluminium cpds, particularly preferably there is the trialkylaluminium of the low alkyl group of 1-5 carbon atom, particularly preferably trimethyl aluminium, triethyl aluminum, triisopropylaluminiuand and triisobutyl aluminium, most preferably triethyl aluminum, triisobutyl aluminium or both mixtures.These alkylaluminium cpds can be used alone, and also can two or more be combined.
Described silane compound has following general formula:
R
2 nSi(OR
3)
4-n
Wherein R
2and R
3can be saturated or unsaturated group, can be straight chain, side chain or cyclic group, maybe can contain heteroatoms, such as halogen, S, N, O etc.; As two or more R of existence
2time, they can be identical or different.As two or more R of existence
3time, they can be identical or different.Preferred R
2and R
3be the cycloalkyl, aryl, aralkyl etc. of the alkyl of 1-10 carbon atom, thiazolinyl, a 3-8 carbon atom independently of one another, the alkyl of a preferred 1-10 carbon atom, the cycloalkyl of a 3-8 carbon atom or aryl.As R
2example have phenyl, cyclopentyl, cyclohexyl, methyl, ethyl, n-propyl, sec.-propyl, isobutyl-etc.As R
3example have methyl, ethyl, n-propyl, sec.-propyl etc.N is the integer of 0-4, preferably 1 or 2.
The example of above-mentioned silane compound has: dimethoxydiphenylsilane, Bicvclopentyl dimethoxysilane, Cyclohexyl Methyl Dimethoxysilane, two sec.-propyl dimethoxysilane, two isobutyl-dimethoxysilane, n-propyl Trimethoxy silane, tetraethoxysilane, n-propyl triethoxyl silane.These silicon compounds can be used alone, also can two or more mixing.
The present invention also provides following technical scheme:
A method for olefinic polymerization, it adopts catalyst system of the present invention.
According to the preferred technical solution of the present invention, described alkene can be selected from the alpha-olefins such as ethene, propylene, 1-butylene, 1-hexene one or more.The blend of preferred propylene or propylene and other alpha-olefins.
According to another optimal technical scheme of the present invention, described polymerization comprises homopolymerization or copolymerization.
Embodiment
Be described further the present invention below in conjunction with embodiment, it should be noted that, following embodiment can not as limiting the scope of the invention, and any improvement made on basis of the present invention is all within protection scope of the present invention.
Polypropylene degree of isotacticity (II.) testing method: use boiling heptane extracting 6h, measure the percentage composition that insolubles accounts for gross weight after dry.
Embodiment 1
(1) after fully being replaced by band side-tube flask nitrogen, add the decane of the dry isooctyl alcohol of 4.94g Magnesium Chloride Anhydrous, 18.9g, 30mL drying, warming while stirring to 130 DEG C, react 2 hours at this temperature, obtain homogeneous mixture.In advance 2.65g tetrabutyl titanate and 1.6g2-methoxybenzoic acid isobutyl ester are added in 5ml toluene, obtain uniform solution at stirring at room temperature reaction 0.5h.Above-mentioned uniform solution is transferred in aforementioned mixture, continues reaction 1 hour at 130 DEG C.Reaction terminates, and is cooled to the alcohol adduct solution that room temperature forms stable and uniform.With sealed membrane, total interface place is sealed, be positioned in exsiccator and spend the night.
(2) by the uniform alcohol adduct solution of above-mentioned preparation, be added drop-wise in 1h and fully replace through nitrogen and to be equipped with in the reactor of-20 DEG C of 250ml titanium tetrachlorides, dropwise, 110 DEG C are warming up to through 3.5h, add the toluene solution containing 1.8g2-methoxybenzoic acid isobutyl ester, react 2h at this temperature.Filter out liquid after reaction terminates, rejoin 250ml titanium tetrachloride, at 110 DEG C of reaction 2h.Leach reaction solution after reaction terminates, with dried hexanes wash 6 times, after vacuum-drying, obtain ingredient of solid catalyst.
The compositional analysis result of above-mentioned ingredient of solid catalyst:
Titanium content: 2.55% (wt)
Mg content: 16.1% (wt)
Ester content: 2.5% (wt).
(3) polyreaction.5 liters of stainless steel cauldrons of agitator are housed after nitrogen is fully replaced, add 1.2kg and refine propylene and 2.7ml triethyl aluminum (concentration is 1moL/L) and 0.08ml Bicvclopentyl dimethoxysilane dimethoxysilane, add the ingredient of solid catalyst 15mg of above-mentioned preparation, add 2g hydrogen, then 70 DEG C are warming up to, at this temperature polyreaction 1h.Reaction terminates rear discharge unreacting gas, obtains white polypropylene.Polymerization result is in table 1.
Embodiment 2
Band arm reaction flask nitrogen is fully replaced, add 100ml titanium tetrachloride and be cooled to-20 DEG C, then within the 1h time, add the spheroidal particle of magnesium chloride alcohol adduct, stirring starts to heat up after fully contacting, adding when temperature rises to 60 DEG C with magnesium halide mol ratio is the O-Anisic Acid isobutyl ester of 0.125:1, continue to heat up, when temperature rises to 110 DEG C, continuing to add with magnesium chloride mol ratio is the O-Anisic Acid isobutyl ester of 0.125:1, and react 2h at such a temperature, after reaction terminates, leach liquid, add 100ml titanium tetrachloride again, reaction is continued 2 hours at 110 DEG C of temperature, filter out liquid, use dry hexanes wash, vacuum-drying, obtained ingredient of solid catalyst.Wherein titanium tetrachloride and alcohol adduct mol ratio are 2.8:1.The total amount and the magnesium chloride mol ratio that add O-Anisic Acid isobutyl ester for twice are 0.25:1.The compositional analysis result of ingredient of solid catalyst:
Titanium content: 2.60% (wt)
Mg content: 18.5% (wt)
Ester content: 2.7% (wt).
Adopt the condition identical with embodiment 1 to carry out the polymerization of propylene, polymerization result is in table 1.
Embodiment 3
Band arm reaction flask nitrogen is fully replaced, add 100ml toluene solvant and be cooled to 0 DEG C, then within the 1h time, magnesium ethylate spheroidal particle is added, add 50ml titanium tetrachloride more successively and be the O-Anisic Acid isobutyl ester of 0.125:1 with magnesium ethylate mol ratio, stirring starts to heat up after fully contacting, adding when temperature rises to 60 DEG C with magnesium ethylate mol ratio is the O-Anisic Acid isobutyl ester of 0.125:1, continue to heat up, heating is stopped when temperature rises to 110 DEG C, react 2h at such a temperature, after reaction terminates, leach liquid, add 50ml titanium tetrachloride and 100ml toluene solvant again, reaction is continued 2 hours at 110 DEG C of temperature, filter out liquid, use dry hexanes wash, vacuum-drying, obtained ingredient of solid catalyst.Wherein titanium tetrachloride and magnesium ethylate mol ratio are 2.8:1.The total amount and the magnesium ethylate mol ratio that add O-Anisic Acid isobutyl ester for twice are 0.25:1.The compositional analysis result of ingredient of solid catalyst:
Titanium content: 2.70% (wt)
Mg content: 17.5% (wt)
Ester content: 2.8% (wt).
Adopt the condition identical with embodiment 1 to carry out the polymerization of propylene, polymerization result is in table 1.
Embodiment 4
O-Anisic Acid isobutyl ester is replaced with 2-methoxyl group-3-tolyl acid isobutyl ester, twice add-on of 2-methoxyl group-3-tolyl acid isobutyl ester is respectively 1.9g and 2.1g, the other the same as in Example 1.The compositional analysis result of ingredient of solid catalyst:
Titanium content: 2.36% (wt)
Mg content: 17.8% (wt)
Ester content: 2.5% (wt).
Adopt the condition identical with embodiment 1 to carry out the polymerization of propylene, polymerization result is in table 1.
Embodiment 5
O-Anisic Acid isobutyl ester is replaced with 2-methoxyl group 3-tolyl acid isobutyl ester, 2-methoxyl group 3-tolyl acid isobutyl ester add total amount for twice and magnesium chloride mol ratio is 0.27:1, be 0.135:1 and 0.135:1 respectively, the other the same as in Example 2.The compositional analysis result of ingredient of solid catalyst:
Titanium content: 2.46% (wt)
Mg content: 16.5% (wt)
Ester content: 2.9% (wt).
Adopt the condition identical with embodiment 1 to carry out the polymerization of propylene, polymerization result is in table 1.
Embodiment 6
O-Anisic Acid isobutyl ester is replaced with 2-methoxyl group 3-tolyl acid isobutyl ester, 2-methoxyl group 3-tolyl acid isobutyl ester add total amount for twice and magnesium chloride mol ratio is 0.26:1, be 0.13:1 and 0.13:1 respectively, the other the same as in Example 3.The compositional analysis result of ingredient of solid catalyst:
Titanium content: 2.36% (wt)
Mg content: 17.5% (wt)
Ester content: 3.1% (wt).
Adopt the condition identical with embodiment 1 to carry out the polymerization of propylene, polymerization result is in table 1.
Embodiment 7
O-Anisic Acid isobutyl ester is replaced with 2-methoxyl group-3,5-tolyl acid isobutyl ester, twice add-on is respectively 1.9g and 2.1g, the other the same as in Example 1.The compositional analysis result of ingredient of solid catalyst:
Titanium content: 2.44% (wt)
Mg content: 16.5% (wt)
Ester content: 2.9% (wt).
Adopt the condition identical with embodiment 1 to carry out the polymerization of propylene, polymerization result is in table 1.
Embodiment 8
O-Anisic Acid isobutyl ester is replaced with 2-methoxyl group-3,5-tolyl acid isobutyl ester, 2-methoxyl group-3,5-tolyl acid isobutyl ester add total amount for twice and magnesium chloride mol ratio is 0.23:1,0.115:1 and 0.115:1 respectively, the other the same as in Example 2.The compositional analysis result of ingredient of solid catalyst:
Titanium content: 2.46% (wt)
Mg content: 17.8% (wt)
Ester content: 2.6% (wt).
Adopt the condition identical with embodiment 1 to carry out the polymerization of propylene, polymerization result is in table 1.
Embodiment 9
O-Anisic Acid isobutyl ester is replaced with 2-methoxyl group-3,5-tolyl acid isobutyl ester, 2-methoxyl group-3,5-tolyl acid isobutyl ester add total amount for twice and magnesium chloride mol ratio is 0.23:1,0.115:1 and 0.115:1 respectively, the other the same as in Example 3.The compositional analysis result of ingredient of solid catalyst:
Titanium content: 2.26% (wt)
Mg content: 16.8% (wt)
Ester content: 2.2% (wt).
Adopt the condition identical with embodiment 1 to carry out the polymerization of propylene, polymerization result is in table 1.
Embodiment 10
O-Anisic Acid isobutyl ester is replaced with 2-methoxyl group-3,5-isopropyl acid isobutyl ester, twice add-on of 2-methoxyl group-3,5-isopropyl acid isobutyl ester is respectively 1.5g and 1.8g, the other the same as in Example 1.The compositional analysis result of ingredient of solid catalyst:
Titanium content: 2.46% (wt)
Mg content: 16.8% (wt)
Ester content: 2.5% (wt).
Adopt the condition identical with embodiment 1 to carry out the polymerization of propylene, polymerization result is in table 1.
Embodiment 11
O-Anisic Acid isobutyl ester is replaced with 2-methoxyl group-3,5-isopropyl acid isobutyl ester, the other the same as in Example 2.The compositional analysis result of ingredient of solid catalyst:
Titanium content: 2.67% (wt)
Mg content: 15.4% (wt)
Ester content: 2.9% (wt).
Adopt the condition identical with embodiment 1 to carry out the polymerization of propylene, polymerization result is in table 1.
Embodiment 12
O-Anisic Acid isobutyl ester is replaced with 2-methoxyl group-3,5-isopropyl acid isobutyl ester, the other the same as in Example 3.The compositional analysis result of ingredient of solid catalyst:
Titanium content: 2.37% (wt)
Mg content: 16.4% (wt)
Ester content: 2.7% (wt).
Adopt the condition identical with embodiment 1 to carry out the polymerization of propylene, polymerization result is in table 1.
Embodiment 13
O-Anisic Acid isobutyl ester is replaced with 2-methoxyl group-3,5-p t butylbenzoic acid isobutyl ester, the other the same as in Example 1.The compositional analysis result of ingredient of solid catalyst:
Titanium content: 2.67% (wt)
Mg content: 15.4% (wt)
Ester content: 2.9% (wt).
Adopt the condition identical with embodiment 1 to carry out the polymerization of propylene, polymerization result is in table 1.
Embodiment 14
O-Anisic Acid isobutyl ester is replaced with 2-methoxyl group-3,5-p t butylbenzoic acid isobutyl ester, the other the same as in Example 2.The compositional analysis result of ingredient of solid catalyst:
Titanium content: 2.57% (wt)
Mg content: 15.9% (wt)
Ester content: 2.2% (wt).
Adopt the condition identical with embodiment 1 to carry out the polymerization of propylene, polymerization result is in table 1.
Embodiment 15
O-Anisic Acid isobutyl ester is replaced with 2-methoxyl group-3,5-p t butylbenzoic acid isobutyl ester, the other the same as in Example 3.The compositional analysis result of ingredient of solid catalyst:
Titanium content: 2.47% (wt)
Mg content: 16.9% (wt)
Ester content: 2.6% (wt).
Adopt the condition identical with embodiment 1 to carry out the polymerization of propylene, polymerization result is in table 1.
Comparative example 1:
Internal electron donor is changed to the DIBP (diisobutyl phthalate) that tradition is used, other operation is identical with embodiment 1.The compositional analysis result of ingredient of solid catalyst:
Titanium content: 2.60% (wt)
Mg content: 16.7% (wt)
Ester content: 2.2% (wt).
Adopt the condition identical with embodiment 1 to carry out the polymerization of propylene, polymerization result is in table 1.
Comparative example 2:
Internal electron donor is changed to the DIBP (diisobutyl phthalate) that tradition is used, the other the same as in Example 2.The compositional analysis result of ingredient of solid catalyst:
Titanium content: 2.35% (wt)
Mg content: 17.5% (wt)
Ester content: 2.8% (wt).
Adopt the condition identical with embodiment 1 to carry out the polymerization of propylene, polymerization result is in table 1.
Comparative example 3:
Internal electron donor is changed to the DIBP (diisobutyl phthalate) that tradition is used, the other the same as in Example 3.The compositional analysis result of ingredient of solid catalyst:
Titanium content: 2.25% (wt)
Mg content: 17.6% (wt)
Ester content: 2.9% (wt).
Adopt the condition identical with embodiment 1 to carry out the polymerization of propylene, polymerization result is in table 1.
The polymerization result of table 1 embodiment 1-15 and comparative example 1-3
Can find out that the catalytic activity of the catalyzer prepared for internal electron donor with 2-alkoxybenzoic acid isobutyl ester compounds is higher than the catalyzer prepared for internal electron donor with traditional diisobutyl phthalate by comparing, and the polypropylene prepared by two kinds of internal electron donors all has higher degree of isotacticity.
Claims (10)
1. a solid catalyst component for olefine polymerization, it comprises (1) magnesium halide, (2) titanium active ingredient and (3) 2-alkoxybenzoic acid ester compound as shown in Equation 1:
Wherein R
1, R
2identical or different, be selected from the alkyl of 1-12 carbon atom separately by oneself, the cycloalkyl of 3-8 carbon atom, aryl or aralkyl;
R
3, R
4, R
5, R
6identical or different, be selected from hydrogen by oneself separately, the alkyl of 1-8 carbon atom, the cycloalkyl of 3-8 carbon atom, aryl or aralkyl.
Preferred R
1, R
2identical or different, be selected from the alkyl of 1-6 carbon atom separately by oneself, the cycloalkyl of 3-8 carbon atom, aryl or aralkyl, more preferably R
1, R
2identical or different, be selected from the alkyl of 1-4 carbon atom separately by oneself, the cycloalkyl of 3-8 carbon atom, aryl or aralkyl.
Preferred R
3, R
4, R
5, R
6identical or different, be selected from hydrogen by oneself separately, the cycloalkyl of the alkyl of 1-6 carbon atom and 3-8 carbon atom; More preferably R
3, R
4, R
5, R
6identical or different, be selected from hydrogen by oneself separately, the alkyl of 1-4 carbon atom.
Preferably, R
1, R
2be selected from methyl independently of one another, ethyl, n-propyl, sec.-propyl, normal-butyl, isobutyl-, the tertiary butyl, n-pentyl, isopentyl, n-hexyl, cyclohexyl, cyclopentyl, cyclobutyl, cyclopropyl, phenyl, benzyl, 2-methyl-benzyl, 3-methyl-benzyl, 2-Ethylbenzyl, 2,3-dimethyl benzyl etc.More preferably, as methyl, ethyl, n-propyl, sec.-propyl, normal-butyl, isobutyl-, the tertiary butyl.
Preferably, R
3, R
4, R
5, R
6be selected from hydrogen independently of one another, methyl, ethyl, n-propyl, sec.-propyl, normal-butyl, isobutyl-, the tertiary butyl, n-pentyl, isopentyl, n-hexyl, isohexyl, cyclohexyl, cyclopentyl.More preferably, as hydrogen, methyl, ethyl, n-propyl, sec.-propyl, isobutyl-, the tertiary butyl, normal-butyl.
Preferably, described cycloalkyl can be suberyl, cyclohexyl, cyclopentyl, cyclobutyl, cyclopropyl.
Preferably, described aryl is the aryl of 6-14 carbon atom, such as phenyl or naphthyl.
Preferably, the aryl in described aralkyl is described above, and described alkyl is the alkyl of 1-8 carbon atom, be preferably 1-6 carbon atom, be more preferably 1-4 carbon atom, such as methyl, ethyl, n-propyl, sec.-propyl, normal-butyl, isobutyl-, the tertiary butyl, n-pentyl, isopentyl, n-hexyl, isohexyl etc.
2. solid catalyst component for olefine polymerization according to claim 1, is characterized in that, the 2-alkoxybenzoic acid ester compound contained by ingredient of solid catalyst shown in formula 1 can be single compound, also can be their mixture.
Preferably, wherein magnesium halide is selected from magnesium chloride, magnesium bromide and magnesium iodide, preferred magnesium chloride.
Preferably, the raw material wherein forming described titanium active ingredient is titanium compound, has structure as shown in Equation 2:
TiX
1 p(OR
1)
4-p
Formula 2
Wherein, p is expressed as the integer of 0-4;
X
1represent halogen atom, preferred chlorine or bromine; More preferably chlorine;
R
1for alkyl, it can be saturated or undersaturated alkyl, it can be the alkyl of straight chain, side chain or ring-type, heteroatoms can be contained, such as S, N, O, Si etc., be preferably alkyl (alkyl of the straight or branched more preferably containing 1-10 carbon atom), thiazolinyl, alkynyl, cycloalkyl (cycloalkyl more preferably containing 3-8 carbon atom), aryl, aralkyl etc.As two or more R of existence
1time, they can be identical or different.As R
1example have methyl, ethyl, n-propyl, sec.-propyl, normal-butyl, isobutyl-, sec-butyl, n-pentyl, n-hexyl, n-heptyl, n-octyl, positive decyl, allyl group, butenyl, cyclopentyl, cyclohexyl, cyclohexenyl, phenyl, benzyl, tolyl, styroyl etc.
Example as compound shown in above-mentioned formula 2 can be four titan-alkoxides, described alkyl is the alkyl of straight chain, side chain or ring-type, as tetramethoxy titanium, purity titanium tetraethoxide, four positive propoxy titaniums, tetraisopropoxy titanium, four titanium n-butoxide, four isobutoxy titaniums, four cyclohexyloxy titaniums etc.; Four aryloxy titaniums, as four phenoxide titaniums; Titanium tetrahalide, as titanium tetrachloride, titanium tetrabromide, titanium tetra iodide; Alkoxyl group three halogenated titanium, as methoxytitanium trichloride, oxyethyl group titanous chloride, positive propoxy titanous chloride, nbutoxytitanium trichloride, oxyethyl group titanium tribromide etc.; Dialkoxy dihalide titanium, as dimethoxy titanium dichloride, diethoxy titanium dichloride, diisopropoxy titanium dichloride, dipropoxy titanium dichloride, diethoxy dibrominated titanium etc.; Tri-alkoxy halogenated titanium, as trimethoxy titanium chloride, triethoxy titanium chloride, three isopropoxy titanium chlorides, three positive propoxy titanium chlorides, three n-Butoxyl titanium-chlorides etc.Wherein, preferred high halogen-containing titanium compound, especially titanium tetrachloride.
3. solid catalyst component for olefine polymerization according to claim 1 and 2, is characterized in that, in described solid catalyst component for olefine polymerization, titanium content is 0.5-4.5%, is preferably 1.5%-4%, is more preferably 2.0-3.5%; The weight content (ester content) of the 2-alkoxybenzoic acid ester compound (internal electron donor) shown in formula 1 is 1-15%, is preferably 1.5-6%, is more preferably 2-4%.
4. a preparation method for solid catalyst component for olefine polymerization, described method comprises the steps:
(1) preparation of magnesium halide alcohol adduct solution
In a nitrogen atmosphere magnesium halide (preferred anhydrous magnesium halide) and alcohol compound are stirred in alkane solvent and are uniformly dispersed, then add the mixed solution of the 2-alkoxybenzoic acid ester compound as shown in Equation 1 of titanate compound and part, react to obtain magnesium halide alcohol adduct solution;
Wherein each substituent definition is with the restriction in claim 1;
(2) preparation of ingredient of solid catalyst
Add a part of titanium compound in the reactor, magnesium halide alcohol adduct solution prepared by step (1) is added, after fully reacting, add remaining 2-alkoxybenzoic acid ester compound as shown in Equation 1, leach liquid after reaction, again add remaining titanium compound, liquid is leached after continuing reaction, with solvent wash, dry, obtained described ingredient of solid catalyst.
5. method according to claim 4, is characterized in that, in step (1), the mol ratio of alcohol compound and magnesium halide is 1-10:1, preferred 2-8:1, more preferably 3-6:1; Preferably, the mol ratio of 2-alkoxybenzoic acid ester compound and magnesium halide is 0.01-0.2:1, preferred 0.05-0.15:1, more preferably 0.08-0.1:1; Preferably, the molar weight of titanic acid ester consumption and 2-alkoxybenzoic acid ester compound is equal; Preferably, the ratio of alkane solvent and magnesium halide is 0.5-20mL:1g, and preferred 1-15mL:1g, more preferably 3-10mL:1g, be also more preferably 5-7mL:1g; The temperature of reaction is preferably 40-200 DEG C, preferred 60-180 DEG C, more preferably 80-150 DEG C; That reacts is preferably 1-6h total time; Obtained magnesium halide alcohol adduct solution is stable and uniform.
Preferably, in step (1), described magnesium halide is magnesium chloride, magnesium bromide and magnesium iodide; Preferred Magnesium Chloride Anhydrous.
Preferably, in step (1), described titanate compound is general formula Ti (OR)
4shown compound, wherein R is the alkyl of 1-8 carbon atom and the cycloalkyl of 3-8 carbon atom, preferred tetrabutyl titanate.
Preferably, in step (1), described alkane solvent is preferably C
8-C
12alkane solvent.
Preferably, in step (1), described alcohol compound is selected from the monohydroxy-alcohol of 1-10 carbon atom, preferred alcohol, propyl alcohol, butanols, 2-ethyl-hexanol.
6. the method according to claim 4 or 5, it is characterized in that, in step (2), concrete reaction is: in the reactor that nitrogen is fully replaced, add titanium compound, be cooled to-25-40 DEG C, magnesium halide alcohol adduct solution prepared by step (1) is added and wherein keeps low temperature to stir, progressively heat up after fully reacting; When temperature rises to 80-135 DEG C, adding with magnesium halide mol ratio is the 2-alkoxybenzoic acid ester compound as shown in Equation 1 of 0.01-0.2:1, and react 1-4 hour at such a temperature, after reaction terminates, leach liquid, again add titanium compound, at 80-135 DEG C of temperature, continue reaction 1-4 hour, then leach liquid, with solvent wash, drying, obtained described ingredient of solid catalyst.
Preferably, in step (2), the volume ratio (ml:ml) of the titanium compound that first time adds and described magnesium halide alcohol adduct solution is 1-4:1, and the amount of the titanium compound that second time adds is identical with first time.Total amount and the magnesium halide mol ratio of the 2-alkoxybenzoic acid ester compound as shown in Equation 1 added for twice are 0.05-0.25:1.
7. a preparation method for solid catalyst component for olefine polymerization, described method comprises the steps:
(1) spheroidal particle (preferably prefabricated according to the method for Chinese patent CN94103454.2) or the alkoxyl magnesium spheroidal particle of magnesium halide alcohol adduct is prepared; Preferably, the magnesium halide in the spheroidal particle of described magnesium halide alcohol adduct is magnesium chloride, alcohol is ethanol; Preferably, described alkoxyl magnesium spheroidal particle is magnesium ethylate spheroidal particle;
(2) spheroidal particle of the magnesium halide alcohol adduct of step (1) or alkoxyl magnesium spheroidal particle are added to are equipped with in the reactor of titanium compound; heat up; add the 2-alkoxybenzoic acid ester compound as shown in the formula 1 in claim 1 or 2 of part; continue to heat up; add remaining 2-alkoxybenzoic acid ester compound as shown in Equation 1 again; liquid is leached after reaction; add titanium compound again; after continuing reaction; filter out liquid; with solvent wash, dry, obtained described ingredient of solid catalyst.
Preferably, in step (2), concrete reaction is: the spheroidal particle of the magnesium halide alcohol adduct of step (1) or alkoxyl magnesium spheroidal particle are added to-25-40 DEG C, fully replace through nitrogen, be equipped with in the reactor of titanium compound, after abundant stirring contact, start to heat up, adding when temperature rises to 40-80 DEG C with magnesium halide mol ratio is the 2-alkoxybenzoic acid ester compound as shown in Equation 1 of 0.01-0.2:1, continue to heat up, when temperature rises to 80-135 DEG C, continuing to add with magnesium halide mol ratio is the 2-alkoxybenzoic acid ester compound as shown in Equation 1 of 0.01-0.2:1, and react 1-4 hour at such a temperature, after reaction terminates, leach liquid, add titanium compound again, reaction 1-4 hour is continued at 80-135 DEG C of temperature, filter out liquid, with solvent wash, dry, obtained described ingredient of solid catalyst.
Preferably, in step (2), the mass ratio of the titanium compound be equipped with in initial reaction device and described spheroidal particle is 10-30:1.
Preferably, in step (2), total amount and the magnesium halide mol ratio of the 2-alkoxybenzoic acid ester compound as shown in Equation 1 added for twice are 0.05-0.25:1.
Preferably, in step (2), when using alkoxyl magnesium spheroidal particle, concrete reaction is: be added to by alkoxyl magnesium spheroidal particle and be equipped with in the reactor of aromatic solvent, add the 2-alkoxybenzoic acid ester compound as shown in Equation 1 of titanium compound and part again, heat up, again add remaining 2-alkoxybenzoic acid ester compound as shown in Equation 1, leach liquid after reaction, then add aromatic solvent and titanium compound, after continuing reaction, filter out liquid, with solvent wash, dry, obtained described ingredient of solid catalyst.Preferably, described reaction is: alkoxyl magnesium spheroidal particle is added to-25-40 DEG C, fully replace through nitrogen, be equipped with in the reactor of aromatic solvent, add titanium compound more successively and with after the 2-alkoxybenzoic acid ester compound as shown in Equation 1 that magnesium halide mol ratio is 0.01-0.1:1 fully stirs and contacts, start to heat up, adding when temperature rises to 40-80 DEG C with magnesium halide mol ratio is the 2-alkoxybenzoic acid ester compound as shown in Equation 1 of 0.01-0.1:1, continue to heat up, heating is stopped when temperature rises to 80-135 DEG C, react 1-4 hour at such a temperature, after reaction terminates, leach liquid, add aromatic solvent and titanium compound again, reaction 1-4 hour is continued at 80-135 DEG C of temperature, filter out liquid, with solvent wash, dry, obtained described ingredient of solid catalyst.
Preferably, in above-mentioned steps (2), the mass ratio of the titanium compound at every turn added at first and described alkoxyl magnesium spheroidal particle is 10-30:1.
Preferably, in above-mentioned steps (2), total amount and the magnesium halide mol ratio of the 2-alkoxybenzoic acid ester compound as shown in Equation 1 added for twice are 0.05-0.20:1.
Preferably, in above-mentioned steps (2), aromatic solvent is selected from the monocycle alkyl-substituted aromatic hydrocarbon of 6-12 atom, the halogenated aryl hydrocarbon containing 1-6 halo atom; Preferred toluene, ethylbenzene, isopropyl benzene etc.
Preferably, in above-mentioned steps (2), second time adds fashionable, and the mass ratio of titanium compound and described alkoxyl magnesium spheroidal particle is 1-6:1, preferred 1-4:1; The volume ratio of aromatic solvent and titanium compound is 0 ~ 3:1, preferably 0 ~ 1:1.
8. the method according to any one of claim 4-7, is characterized in that, the titanium compound in aforesaid method has general formula as shown in Equation 2,
TiX
1 p(OR
1)
4-p
Formula 2
Each substituting group definition as previously mentioned.
9. a catalyst system, comprises the ingredient of solid catalyst described in any one of claim 1-3.
Preferably, its catalyst system comprises following component:
(1) ingredient of solid catalyst described in any one of claim 1-3;
(2) a kind of alkylaluminium cpd; With
(3) a kind of silane compound.
Preferably, described alkylaluminium cpd, although be not particularly limited, preferably containing alkyl, halogen, alkoxyl group and composition thereof.Particularly, trialkylaluminium, as trimethyl aluminium, triethyl aluminum, triisopropylaluminiuand, triisobutyl aluminium and trioctylaluminum; The monochlorinated aluminium of dialkyl group, aluminium as monochlorinated in diethyl, the monochlorinated aluminium of di-isopropyl, the monochlorinated aluminium of diisobutyl and the monochlorinated aluminium of dioctyl; Dialkyl group sesquichloride, as diethyl sesquichloride; Chain aikyiaiurnirsoxan beta, as methylaluminoxane etc.In these alkylaluminium cpds, particularly preferably there is the trialkylaluminium of the low alkyl group of 1-5 carbon atom, particularly preferably trimethyl aluminium, triethyl aluminum, triisopropylaluminiuand and triisobutyl aluminium, most preferably triethyl aluminum, triisobutyl aluminium or both mixtures.These alkylaluminium cpds can be used alone, and also can two or more be combined.
Preferably, described silane compound has following general formula:
R
2 nSi(OR
3)
4-n
Wherein R
2and R
3can be saturated or unsaturated group, can be straight chain, side chain or cyclic group, maybe can contain heteroatoms, such as halogen, S, N, O etc.; As two or more R of existence
2time, they can be identical or different.As two or more R of existence
3time, they can be identical or different.Preferred R
2and R
3be the cycloalkyl, aryl, aralkyl etc. of the alkyl of 1-10 carbon atom, thiazolinyl, a 3-8 carbon atom independently of one another, the alkyl of a preferred 1-10 carbon atom, the cycloalkyl of a 3-8 carbon atom or aryl.As R
2example have phenyl, cyclopentyl, cyclohexyl, methyl, ethyl, n-propyl, sec.-propyl, isobutyl-etc.As R
3example have methyl, ethyl, n-propyl, sec.-propyl etc.N is the integer of 0-4, preferably 1 or 2.
Preferably, the example of above-mentioned silane compound has: dimethoxydiphenylsilane, Bicvclopentyl dimethoxysilane, Cyclohexyl Methyl Dimethoxysilane, two sec.-propyl dimethoxysilane, two isobutyl-dimethoxysilane, n-propyl Trimethoxy silane, tetraethoxysilane, n-propyl triethoxyl silane.These silicon compounds can be used alone, also can two or more mixing.
10. a method for olefinic polymerization, it adopts catalyst system according to claim 9.
Preferably, described alkene can be selected from one or more in the alpha-olefins such as ethene, propylene, 1-butylene, 1-hexene.The blend of preferred propylene or propylene and other alpha-olefins.
Preferably, described polymerization comprises homopolymerization or copolymerization.
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| CN108727524A (en) * | 2018-05-21 | 2018-11-02 | 中国石油天然气股份有限公司 | Internal electron donor compound and catalyst for catalyzing propylene polymerization |
| CN109096421A (en) * | 2017-06-21 | 2018-12-28 | 中国石油化工股份有限公司 | A kind of catalyst and olefine polymerizing process for olefinic polymerization |
| CN110144022A (en) * | 2019-05-28 | 2019-08-20 | 国家能源集团宁夏煤业有限责任公司 | The industrial production process of Ziegler-Natta catalyst |
| CN111875723A (en) * | 2020-07-16 | 2020-11-03 | 国家能源集团宁夏煤业有限责任公司 | Ethoxy magnesium carrier and preparation method thereof, Ziegler-Natta catalyst and preparation method and application thereof |
| CN112778442A (en) * | 2019-11-04 | 2021-05-11 | 中国石油化工股份有限公司 | Olefin polymerization catalyst solid component, preparation method thereof, olefin polymerization catalyst and application |
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| CN114456288A (en) * | 2020-10-22 | 2022-05-10 | 中国石油化工股份有限公司 | Titanium-containing catalyst, catalyst for olefin polymerization reaction, and preparation method and application thereof |
| CN114456288B (en) * | 2020-10-22 | 2024-02-13 | 中国石油化工股份有限公司 | Titanium-containing catalyst, catalyst for olefin polymerization reaction, preparation method and application thereof |
| CN114716587A (en) * | 2021-01-05 | 2022-07-08 | 中国科学院化学研究所 | Olefin polymerization solid catalyst component containing phenylacetate compounds, and preparation method and application thereof |
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