BE786596A - PURIFICATION OF ORGANIC ISOCYANATES - Google Patents
PURIFICATION OF ORGANIC ISOCYANATESInfo
- Publication number
- BE786596A BE786596A BE786596DA BE786596A BE 786596 A BE786596 A BE 786596A BE 786596D A BE786596D A BE 786596DA BE 786596 A BE786596 A BE 786596A
- Authority
- BE
- Belgium
- Prior art keywords
- purification
- organic isocyanates
- isocyanates
- organic
- 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 |
|---|---|---|---|
| GB3597571A GB1362708A (en) | 1971-07-30 | 1971-07-30 | Process for the purification of organic isocyanates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE786596A true BE786596A (en) | 1973-01-22 |
Family
ID=10383572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE786596D BE786596A (en) | 1971-07-30 | PURIFICATION OF ORGANIC ISOCYANATES |
Country Status (8)
| Country | Link |
|---|---|
| AR (1) | AR192660A1 (en) |
| AU (1) | AU4478672A (en) |
| BE (1) | BE786596A (en) |
| DE (1) | DE2237552A1 (en) |
| FR (1) | FR2149148A5 (en) |
| GB (1) | GB1362708A (en) |
| IT (1) | IT972163B (en) |
| NL (1) | NL7210432A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2625742B1 (en) * | 1988-01-13 | 1990-06-22 | Rhone Poulenc Chimie | PROCESS FOR SEPARATION OF TOLUENE DIISOCYANATE CONTAINED IN THE RESIDUES OF ITS MANUFACTURE |
| DE19914291A1 (en) | 1999-03-30 | 2000-10-05 | Bayer Ag | Process for the purification of a low molecular isocyanate, comprises addition of an oligomeric organic polyphosphate compound and heating for ten minutes below two hundred degrees |
| DE19914292A1 (en) | 1999-03-30 | 2000-10-05 | Bayer Ag | Reduction of the chorine content of low molecular isocyanates comprises reaction with a tertiary or quaternary amine group containing anion exchanger for ten minutes at less than two hundred degrees |
| DE19922572A1 (en) | 1999-05-17 | 2000-11-23 | Bayer Ag | Process for the purification of organic isocyanates, the organic isocyanates thus purified and their use |
| DE10333929A1 (en) | 2003-07-25 | 2005-02-24 | Bayer Materialscience Ag | Preparation of mixtures of di- and polyisocyanates of the diphenylmethane series with high contents of 4,4'-methylenediphenyl diisocyanate and 2,4'-methylenediphenyl diisocyanate |
| JP5700595B2 (en) * | 2012-01-25 | 2015-04-15 | 旭化成ケミカルズ株式会社 | Separation method |
-
0
- BE BE786596D patent/BE786596A/en unknown
-
1971
- 1971-07-30 GB GB3597571A patent/GB1362708A/en not_active Expired
-
1972
- 1972-07-20 AU AU44786/72A patent/AU4478672A/en not_active Expired
- 1972-07-22 IT IT2731572A patent/IT972163B/en active
- 1972-07-28 FR FR7227324A patent/FR2149148A5/fr not_active Expired
- 1972-07-28 AR AR24332572A patent/AR192660A1/en active
- 1972-07-28 NL NL7210432A patent/NL7210432A/xx not_active Application Discontinuation
- 1972-07-31 DE DE19722237552 patent/DE2237552A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE2237552A1 (en) | 1973-02-15 |
| AU4478672A (en) | 1974-01-24 |
| FR2149148A5 (en) | 1973-03-23 |
| NL7210432A (en) | 1973-02-01 |
| GB1362708A (en) | 1974-08-07 |
| AR192660A1 (en) | 1973-02-28 |
| IT972163B (en) | 1974-05-20 |
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