GB1120770A - Manufacture of organic isocyanates - Google Patents
Manufacture of organic isocyanatesInfo
- Publication number
- GB1120770A GB1120770A GB3521466A GB3521466A GB1120770A GB 1120770 A GB1120770 A GB 1120770A GB 3521466 A GB3521466 A GB 3521466A GB 3521466 A GB3521466 A GB 3521466A GB 1120770 A GB1120770 A GB 1120770A
- Authority
- GB
- United Kingdom
- Prior art keywords
- organic isocyanates
- stage
- manufacture
- isocyanates
- phosgene
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C263/00—Preparation of derivatives of isocyanic acid
- C07C263/10—Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Organic isocyanates are prepared by mixing in a first stage an excess of phosgene with a solution or suspension of a primary amine in an inert solvent while passing HCl in an amount not above 1 mole per mole NH2 group, and in a second stage or series of subsequent stages completing the reaction by heating, with optional addition of further phosgene. Examples describe the production of tolylene diisocyanate, but other isocyanates are listed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3521466A GB1120770A (en) | 1966-08-05 | 1966-08-05 | Manufacture of organic isocyanates |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3521466A GB1120770A (en) | 1966-08-05 | 1966-08-05 | Manufacture of organic isocyanates |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1120770A true GB1120770A (en) | 1968-07-24 |
Family
ID=10375165
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3521466A Expired GB1120770A (en) | 1966-08-05 | 1966-08-05 | Manufacture of organic isocyanates |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1120770A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003099770A1 (en) * | 2002-05-23 | 2003-12-04 | Basf Aktiengesellschaft | Method for producing isocyanates |
CN104640840A (en) * | 2012-09-24 | 2015-05-20 | 拜耳材料科技股份有限公司 | Method for producing diisocyanates by phosgenating diamine suspensions |
-
1966
- 1966-08-05 GB GB3521466A patent/GB1120770A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003099770A1 (en) * | 2002-05-23 | 2003-12-04 | Basf Aktiengesellschaft | Method for producing isocyanates |
US7112694B2 (en) | 2002-05-23 | 2006-09-26 | Basf Aktiengesellschaft | Method for producing isocyanates |
CN100361968C (en) * | 2002-05-23 | 2008-01-16 | 巴斯福股份公司 | Method for producing isocyanates |
CN101108812B (en) * | 2002-05-23 | 2010-06-02 | 巴斯福股份公司 | Method for producing isocyanates |
CN104640840A (en) * | 2012-09-24 | 2015-05-20 | 拜耳材料科技股份有限公司 | Method for producing diisocyanates by phosgenating diamine suspensions |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA944094A (en) | Process for the production of flame-resistant foams based on isocyanates | |
ES423324A1 (en) | Process for the production of polyisocyanates with a biuret structure | |
JPS52139020A (en) | Process for manufacturing halosilylcarbamate and isocyanate derived thereof | |
GB1054555A (en) | ||
IE44472L (en) | Producing urethanes | |
GB1120770A (en) | Manufacture of organic isocyanates | |
GB978917A (en) | Process for preparing isocyanates | |
GB1086782A (en) | Process for manufacturing polyisocyanates | |
ES363948A1 (en) | Polyurethane foams | |
ES412135A1 (en) | Process for the manufacture of 2-aryl-v-triazole | |
ES404932A1 (en) | Process for the manufacture of polyurethanes | |
GB825693A (en) | Benzyl isothiocyanates | |
GB1196008A (en) | A Process for the Continuous Preparation of Aromatic Mono- and Diisocyanates. | |
GB1447345A (en) | Substituted phenylureas their preparation and their use as herbicides | |
GB1240622A (en) | Molluscicides | |
GB1173680A (en) | Heterocyclic Isocyanates | |
GB831044A (en) | Benzene sulphonyl ureas | |
GB1521690A (en) | Production of isocyanates | |
BE802351A (en) | ISOCYANATE PRODUCTION | |
SE392266B (en) | METHOD OF PREPARING AROMATIC ISOCYANATES BY CATALYTIC REACTION OF THE ISOCYANATE CORRESPONDING DINITRO COMPOUND WITH CARBON MONOXIDE IN ONE STEP | |
BE791104A (en) | ISOCYANATE PRODUCTION | |
GB912985A (en) | Improvements in or relating to conveyor belting | |
GB1038187A (en) | Bi-and tri-n-substituted derivatives of isocyanuric acid | |
GB1210691A (en) | Process for the production of polyurethane or polyurethane-urea microporous sheet structures | |
FR2034808A1 (en) | 1,3-dithiolanyloximino carbamates as insect- - icides or herbicides |