发明名称 |
Continuous process for the production of organic isocyanates |
摘要 |
Organic mono- or poly-isocyanates are produced on a continuous basis by phosgenating the corresponding amines. A solution of the amine to be phosgenated is continuously sprayed through a smooth-jet nozzle into a solution of phosgene continuously flowing through a mixing chamber. The mixing chamber is maintained at a temperature of 120 DEG to 300 DEG C. and a pressure of from 10 to 1000 bars. The molar ratio of phosgene to primary amino groups is generally from 2:1 to 30:1. |
申请公布号 |
US4419295(A) |
申请公布日期 |
1983.12.06 |
申请号 |
US19820379822 |
申请日期 |
1982.05.20 |
申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
HENNIG, HANS-JOACHIM;LAHRS, JUERGEN;LIEBSCH, DIETRICH |
分类号 |
C07C265/00;B01J19/26;C07C67/00;C07C241/00;C07C263/10;C07C265/04;C07C265/12;C07C265/14;C08G18/00;(IPC1-7):C07C118/02 |
主分类号 |
C07C265/00 |
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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