BR9203216A - Processo para a obtencao de um destilado constituido essencialmente de toluileodiisocianato e de um produto de fundo que aparesenta grupos isocianato - Google Patents

Processo para a obtencao de um destilado constituido essencialmente de toluileodiisocianato e de um produto de fundo que aparesenta grupos isocianato

Info

Publication number
BR9203216A
BR9203216A BR929203216A BR9203216A BR9203216A BR 9203216 A BR9203216 A BR 9203216A BR 929203216 A BR929203216 A BR 929203216A BR 9203216 A BR9203216 A BR 9203216A BR 9203216 A BR9203216 A BR 9203216A
Authority
BR
Brazil
Prior art keywords
toluileodiisocianate
appears
obtaining
fund product
essentially contained
Prior art date
Application number
BR929203216A
Other languages
English (en)
Inventor
Uwe Jens Dr Zarnack
Volker Dr Weintritt
Christian Dr Koenig
Original Assignee
Bayer Ag
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 Bayer Ag filed Critical Bayer Ag
Publication of BR9203216A publication Critical patent/BR9203216A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/18—Separation; Purification; Stabilisation; Use of additives
    • C07C263/20—Separation; Purification
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S203/00—Distillation: processes, separatory
    • Y10S203/06—Reactor-distillation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S203/00—Distillation: processes, separatory
    • Y10S203/17—Saline water conversion

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyurethanes Or Polyureas (AREA)
BR929203216A 1991-08-20 1992-08-19 Processo para a obtencao de um destilado constituido essencialmente de toluileodiisocianato e de um produto de fundo que aparesenta grupos isocianato BR9203216A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4127514A DE4127514A1 (de) 1991-08-20 1991-08-20 Verfahren zur gewinnung von polyisocyanaten aus destillationsrueckstaenden der toluylendiisocyanatherstellung

Publications (1)

Publication Number Publication Date
BR9203216A true BR9203216A (pt) 1993-04-06

Family

ID=6438680

Family Applications (1)

Application Number Title Priority Date Filing Date
BR929203216A BR9203216A (pt) 1991-08-20 1992-08-19 Processo para a obtencao de um destilado constituido essencialmente de toluileodiisocianato e de um produto de fundo que aparesenta grupos isocianato

Country Status (7)

Country Link
US (1) US5314588A (pt)
EP (1) EP0528299B1 (pt)
JP (1) JPH05194354A (pt)
BR (1) BR9203216A (pt)
CA (1) CA2076246A1 (pt)
DE (2) DE4127514A1 (pt)
MX (1) MX9204686A (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4211774A1 (de) * 1992-04-08 1993-10-14 Bayer Ag Modifizierte aromatische Polyisocyanate und ihre Verwendung zur Herstellung von harten Urethangruppen aufweisenden Schaumstoffen
JP3250721B2 (ja) * 1995-12-12 2002-01-28 キヤノン株式会社 Ｓｏｉ基板の製造方法
US5902459A (en) * 1996-06-10 1999-05-11 Basf Corporation Recovery of products from toluenediisocyanate residues
WO2009027418A1 (de) 2007-08-31 2009-03-05 Basf Se Verfahren zur herstellung von isocyanaten
EP2872481B1 (de) * 2012-07-11 2016-08-24 Covestro Deutschland AG Verfahren zur aufarbeitung von destillationsrückständen aus der isocyanatherstellung
US10703713B2 (en) 2016-12-21 2020-07-07 Covestro Deutschland Ag Process for preparing an isocyanate

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3128310A (en) * 1955-09-09 1964-04-07 Bayer Ag Recovery of amines
BE562425A (pt) * 1956-11-16
BE581667A (pt) * 1958-08-15
US3215652A (en) * 1962-09-24 1965-11-02 Allied Chem Process for producing a rigid polyether-polyurethane foam
GB1047101A (en) * 1964-03-23 1966-11-02 Mobay Chemical Corp Recovery of amines
US3426058A (en) * 1965-03-02 1969-02-04 Allied Chem Preparation of isocyanate compositions
US3457291A (en) * 1965-04-01 1969-07-22 Union Carbide Corp Production of isocyanates
US3452073A (en) * 1965-04-05 1969-06-24 Allied Chem Liquid polyisocyanate compositions and process for the production thereof
GB1146661A (en) * 1965-04-29 1969-03-26 Ici Ltd Foamed polymers
US3455836A (en) * 1966-10-10 1969-07-15 Allied Chem Polyisocyanate compositions
DE2002064C2 (de) * 1970-01-17 1983-09-01 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von flammwidrigen elastischen oder halbelastischen Schaumstoffen
DE2123183A1 (pt) * 1971-05-11 1972-12-14
BE792000A (fr) * 1971-11-29 1973-03-16 Du Pont Compositions de polyisocyanates utilisables pour la fabricationde matieres polymeres
IT986919B (it) * 1972-07-07 1975-01-30 Allied Chem Composizione adesiva riempitiva e di stampaggio incorporante un residuo di toluene diisocianato
US4055585A (en) * 1972-11-15 1977-10-25 Sumitomo Chemical Company, Limited Preparation of liquid TDI for compositions
JPS5029464B2 (pt) * 1972-11-15 1975-09-23 Sumitomo Chemical Co
GB1422056A (en) * 1973-05-29 1976-01-21 Ici Ltd Polyurethane foams
DD130143B1 (de) * 1975-08-15 1979-12-27 Guenter Muecke Verfahren zur kontinuierlichen thermischen abtrennung organischer isocyanate aus fluessigem destillationsrueckstand
DE2846809A1 (de) * 1978-10-27 1980-05-08 Bayer Ag Verfahren zur herstellung von polyurethankunststoffen
DE2850609A1 (de) * 1978-11-22 1980-06-12 Basf Ag Verfahren zur herstellung von stabilen fuellstoff-polyol-dispersionen
DE2915830A1 (de) * 1979-04-19 1980-10-23 Basf Ag Gewinnung von toluylendiisocyanat und/oder hoehersiedenden loesungsmitteln im wirbelbett aus destillationsrueckstaenden der toluylendiisocanat-herstellung
US4489177A (en) * 1983-12-29 1984-12-18 Olin Corporation Isocyanate-reactive compounds from TDI distillation residue and polyurethanes prepared therefrom
EP0189156A3 (en) * 1985-01-25 1988-02-10 BASF Corporation Low temperature stable polymethylene polyphenylene polyisocyanates
SE8604441L (sv) * 1986-10-20 1988-04-21 Nobel Chematur Ab Sett att utvinna isocyanater
DD257827A1 (de) * 1987-02-20 1988-06-29 Schwarzheide Synthesewerk Veb Verfahren zur gewinnung von isocyanatkomponenten aus verfahrensprodukten der toluylendiisocyanatherstellung

Also Published As

Publication number Publication date
US5314588A (en) 1994-05-24
JPH05194354A (ja) 1993-08-03
EP0528299A2 (de) 1993-02-24
MX9204686A (es) 1993-04-01
CA2076246A1 (en) 1993-02-21
EP0528299B1 (de) 1995-01-11
DE4127514A1 (de) 1993-02-25
EP0528299A3 (en) 1993-05-05
DE59201182D1 (de) 1995-02-23

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Legal Events

Date Code Title Description
EE Request for examination
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FA8 Dismissal: dismissal - article 36, par. 1 of industrial property law