MX162758A - Procedimiento para separar 2,4-diisocianatotolueno tecnicamente puro o mezclas de isomeros con un contenido elevado de 2,4-diisocianatotolueno de las mezclas isomeras de 2,4-y 2,6-diisocianatotolueno - Google Patents
Procedimiento para separar 2,4-diisocianatotolueno tecnicamente puro o mezclas de isomeros con un contenido elevado de 2,4-diisocianatotolueno de las mezclas isomeras de 2,4-y 2,6-diisocianatotoluenoInfo
- Publication number
- MX162758A MX162758A MX197355A MX19735583A MX162758A MX 162758 A MX162758 A MX 162758A MX 197355 A MX197355 A MX 197355A MX 19735583 A MX19735583 A MX 19735583A MX 162758 A MX162758 A MX 162758A
- Authority
- MX
- Mexico
- Prior art keywords
- diisocianatotoluene
- mixtures
- isomers
- procedure
- separate
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823220439 DE3220439A1 (de) | 1982-05-29 | 1982-05-29 | Verfahren zur abtrennung von technisch reinem 2,4-diisocyanatotoluol oder von, einen erhoehten gehalt an 2,4-diisocyanatotoluol aufweisenden, isomerengemischen von, im wesentlichen aus 2,4- und 2,6-diisocyanatotoluol bestehenden, isomerengemischen |
Publications (1)
Publication Number | Publication Date |
---|---|
MX162758A true MX162758A (es) | 1991-06-25 |
Family
ID=6164910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX197355A MX162758A (es) | 1982-05-29 | 1983-05-19 | Procedimiento para separar 2,4-diisocianatotolueno tecnicamente puro o mezclas de isomeros con un contenido elevado de 2,4-diisocianatotolueno de las mezclas isomeras de 2,4-y 2,6-diisocianatotolueno |
Country Status (7)
Country | Link |
---|---|
US (1) | US4499023A (es) |
EP (1) | EP0097243B1 (es) |
JP (1) | JPS58216149A (es) |
CA (1) | CA1211122A (es) |
DE (2) | DE3220439A1 (es) |
ES (1) | ES8403438A1 (es) |
MX (1) | MX162758A (es) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2566398B1 (fr) * | 1984-06-21 | 1988-03-11 | Rhone Poulenc Chim Base | Procede de transformation d'un melange d'isomeres du diisocyanatotoluene en vue d'obtenir l'isomere-2,4 avec une purete technique ou un melange d'isomeres enrichi en l'isomere-2,4 et un melange d'isomeres enrichi en l'isomere-2,6 |
DE4111212A1 (de) * | 1991-04-06 | 1992-10-08 | Bayer Ag | Verfahren zur konditionierung und/oder reinigung von organischen isocyanaten |
DE4200236A1 (de) * | 1992-01-08 | 1993-07-15 | Bayer Ag | Verfahren zur isolierung von polyisocyanat-isomeren aus polyisocyanatgemischen |
DE19645659A1 (de) | 1996-11-06 | 1998-05-07 | Bayer Ag | Verfahren zur Isomerentrennung von Isocyanaten |
DE19651216C1 (de) * | 1996-12-10 | 1998-08-20 | Bayer Ag | Verfahren zur Suspensionskristallisation |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3217024A (en) * | 1963-03-22 | 1965-11-09 | Allied Chem | Conversion of mixtures of 2, 4-and 2, 6-toluene diisocyanates to other mixtures of different isomer ratio |
US4246187A (en) * | 1979-07-17 | 1981-01-20 | E. I. Du Pont De Nemours And Company | Separation of 2,4-tolylene diisocyanate from mixtures of 2,4- and 2,6-tolylene diisocyanate |
-
1982
- 1982-05-29 DE DE19823220439 patent/DE3220439A1/de not_active Withdrawn
-
1983
- 1983-05-12 US US06/493,869 patent/US4499023A/en not_active Expired - Fee Related
- 1983-05-13 CA CA000428093A patent/CA1211122A/en not_active Expired
- 1983-05-16 DE DE8383104790T patent/DE3360387D1/de not_active Expired
- 1983-05-16 EP EP83104790A patent/EP0097243B1/de not_active Expired
- 1983-05-19 MX MX197355A patent/MX162758A/es unknown
- 1983-05-27 ES ES522782A patent/ES8403438A1/es not_active Expired
- 1983-05-27 JP JP58092597A patent/JPS58216149A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
ES522782A0 (es) | 1984-03-16 |
US4499023A (en) | 1985-02-12 |
ES8403438A1 (es) | 1984-03-16 |
DE3360387D1 (en) | 1985-08-14 |
CA1211122A (en) | 1986-09-09 |
EP0097243A1 (de) | 1984-01-04 |
EP0097243B1 (de) | 1985-07-10 |
DE3220439A1 (de) | 1983-12-01 |
JPS58216149A (ja) | 1983-12-15 |
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