发明名称 |
Process for producing isocyanates |
摘要 |
Provided is a process for producing isocyanates from carbamic acid esters which comprises thermally decomposing carbamic acid esters in the presence of a catalyst containing at least one compound selected from the group consisting of organic sulfonic acids and alkaline metal salts of organic sulfonic acids. Thereby, a high thermal decomposition rate can be provided and isocyanate can be obtained in a high yield. |
申请公布号 |
EP0672653(B1) |
申请公布日期 |
1998.01.14 |
申请号 |
EP19950103854 |
申请日期 |
1995.03.16 |
申请人 |
MITSUBISHI GAS CHEMICAL COMPANY, INC. |
发明人 |
OKAWA, TAKASHI;AOKI, TOSHINARI;MATSUNAGA, HIROSHI;IGARASHI, HIDEO |
分类号 |
B01J31/02;C07B61/00;C07C263/04;C07C265/14;(IPC1-7):C07C263/04 |
主分类号 |
B01J31/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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