MX9204686A - Procedimiento para la obtencion de poliisocianatos a partir de residuos de destilacion de la obtencion del toluilendiisocianato - Google Patents
Procedimiento para la obtencion de poliisocianatos a partir de residuos de destilacion de la obtencion del toluilendiisocianatoInfo
- Publication number
- MX9204686A MX9204686A MX9204686A MX9204686A MX9204686A MX 9204686 A MX9204686 A MX 9204686A MX 9204686 A MX9204686 A MX 9204686A MX 9204686 A MX9204686 A MX 9204686A MX 9204686 A MX9204686 A MX 9204686A
- Authority
- MX
- Mexico
- Prior art keywords
- toluilendiisocyanate
- procedure
- waste distillation
- polyisocyanates
- obtaining
- Prior art date
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)
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 |
---|---|
MX9204686A true MX9204686A (es) | 1993-04-01 |
Family
ID=6438680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX9204686A MX9204686A (es) | 1991-08-20 | 1992-08-18 | Procedimiento para la obtencion de poliisocianatos a partir de residuos de destilacion de la obtencion del toluilendiisocianato |
Country Status (7)
Country | Link |
---|---|
US (1) | US5314588A (es) |
EP (1) | EP0528299B1 (es) |
JP (1) | JPH05194354A (es) |
BR (1) | BR9203216A (es) |
CA (1) | CA2076246A1 (es) |
DE (2) | DE4127514A1 (es) |
MX (1) | MX9204686A (es) |
Families Citing this family (6)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3128310A (en) * | 1955-09-09 | 1964-04-07 | Bayer Ag | Recovery of amines |
BE562425A (es) * | 1956-11-16 | |||
BE581667A (es) * | 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 (es) * | 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 (es) * | 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 |
-
1991
- 1991-08-20 DE DE4127514A patent/DE4127514A1/de not_active Withdrawn
-
1992
- 1992-08-07 DE DE59201182T patent/DE59201182D1/de not_active Expired - Fee Related
- 1992-08-07 EP EP92113506A patent/EP0528299B1/de not_active Expired - Lifetime
- 1992-08-11 US US07/928,561 patent/US5314588A/en not_active Expired - Fee Related
- 1992-08-17 CA CA002076246A patent/CA2076246A1/en not_active Abandoned
- 1992-08-18 JP JP4240081A patent/JPH05194354A/ja active Pending
- 1992-08-18 MX MX9204686A patent/MX9204686A/es unknown
- 1992-08-19 BR BR929203216A patent/BR9203216A/pt not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
US5314588A (en) | 1994-05-24 |
JPH05194354A (ja) | 1993-08-03 |
EP0528299A2 (de) | 1993-02-24 |
CA2076246A1 (en) | 1993-02-21 |
BR9203216A (pt) | 1993-04-06 |
EP0528299B1 (de) | 1995-01-11 |
DE4127514A1 (de) | 1993-02-25 |
EP0528299A3 (en) | 1993-05-05 |
DE59201182D1 (de) | 1995-02-23 |
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