GB684577A - Process for separating alkenyl halide mixtures by distillation - Google Patents

Process for separating alkenyl halide mixtures by distillation

Info

Publication number
GB684577A
GB684577A GB28582/50A GB2858250A GB684577A GB 684577 A GB684577 A GB 684577A GB 28582/50 A GB28582/50 A GB 28582/50A GB 2858250 A GB2858250 A GB 2858250A GB 684577 A GB684577 A GB 684577A
Authority
GB
United Kingdom
Prior art keywords
distillation
ketone
alkenyl
alkenyl halide
separated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB28582/50A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bataafsche Petroleum Maatschappij NV
Original Assignee
Bataafsche Petroleum Maatschappij NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bataafsche Petroleum Maatschappij NV filed Critical Bataafsche Petroleum Maatschappij NV
Publication of GB684577A publication Critical patent/GB684577A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/38—Separation; Purification; Stabilisation; Use of additives
    • C07C17/383—Separation; Purification; Stabilisation; Use of additives by distillation
    • C07C17/386—Separation; Purification; Stabilisation; Use of additives by distillation with auxiliary compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A 2-alkenyl halide is separated from a contaminant 1-alkenyl halide by distillation in presence of an aliphatic saturated ketone having a boiling-point lower than or not substantially exceeding those of the alkenyl halides whereby a low boiling azeotrope containing the 1-alkenyl halide and the ketone is formed. Many alkenyl chlorides, bromides and iodides are specified and they may be obtained by halogenation of an olefin or dehydrohalogenation of a dihalo aliphatic hydrocarbon. Many ketones are also specified. The 1-alkenyl halide and ketone may be separated by solvent extraction, extractive distillation, e.g. in presence of water or selective adsorption and the ketone may be recycled to the distillation zone. In examples: 2-methallyl chloride contaminated with isocrotyl chloride is subjected to distillation in presence of acetone.ALSO:A 2-alkenyl halide is separated from a 1-alkenyl halide by distillation in presence of an aliphatic saturated ketone having a boiling point lower than or not substantially exceeding those of the alkenyl halides whereby a low boiling azeotrope containing the 1-alkenyl halide and the ketone is formed. Many alkenyl halides and ketones are specified. The 1-alkenyl halide and ketone may be separated by solvent extraction, extractive distillation e.g. in presence of water or selective absorption and the ketone may be recycled to the distillation zone. In examples 2-methallyl chloride contaminated with isocrotyl chloride is subjected to batch or continuous distillation in presence of acetone.
GB28582/50A 1949-11-26 1950-11-22 Process for separating alkenyl halide mixtures by distillation Expired GB684577A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US684577XA 1949-11-26 1949-11-26

Publications (1)

Publication Number Publication Date
GB684577A true GB684577A (en) 1952-12-17

Family

ID=22082700

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28582/50A Expired GB684577A (en) 1949-11-26 1950-11-22 Process for separating alkenyl halide mixtures by distillation

Country Status (1)

Country Link
GB (1) GB684577A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4036703A (en) * 1975-06-25 1977-07-19 Rhone-Poulenc Industries Method of separating chlorinated aliphatic hydrocarbons with 1 to 3 carbon atoms from mixtures thereof by extractive distillation
CN108164388A (en) * 2018-02-09 2018-06-15 浙江大学 A kind of preparation method of high-content 2- methallyl chlorides
WO2019144647A1 (en) * 2018-01-29 2019-08-01 浙江大学 Synthesis method for highly selective 2-methyl allyl chloride and synthesis reactor thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4036703A (en) * 1975-06-25 1977-07-19 Rhone-Poulenc Industries Method of separating chlorinated aliphatic hydrocarbons with 1 to 3 carbon atoms from mixtures thereof by extractive distillation
WO2019144647A1 (en) * 2018-01-29 2019-08-01 浙江大学 Synthesis method for highly selective 2-methyl allyl chloride and synthesis reactor thereof
US11407698B2 (en) 2018-01-29 2022-08-09 Zhejiang University Synthesis method for highly selective 2-methylallyl chloride and synthesis reactor thereof
CN108164388A (en) * 2018-02-09 2018-06-15 浙江大学 A kind of preparation method of high-content 2- methallyl chlorides
CN108164388B (en) * 2018-02-09 2020-07-10 浙江大学 Preparation method of high-content 2-methyl allyl chloride

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