发明名称 |
Process for the production of phosgene with simultaneous generation of steam |
摘要 |
Phosgene is produced by reacting chlorine and an excess of carbon monoxide in the presence of activated charcoal in a two stage process. In the first stage, the chlorine and carbon monoxide are reacted in a tubular reactor containing activated charcoal at a temperature above 250 DEG C. unitl 95 to 98% chlorine has reacted. The reaction gases are cooled to a temperature of from 50 DEG to 120 DEG C. and then introduced into a second reactor maintained at 50 to 100 DEG C. where the phosgene-forming reaction is completed. The phosgene leaving the second reactor has a residual chlorine content of less than 50 ppm. The heat generated during phosgene formation is used to produce steam.
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申请公布号 |
US4764308(A) |
申请公布日期 |
1988.08.16 |
申请号 |
US19870103561 |
申请日期 |
1987.09.30 |
申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
SAUER, HEINZ;PORKERT, HELMUT F.;LIEBSCH, DIETRICH |
分类号 |
C01B31/28;(IPC1-7):C07C51/58 |
主分类号 |
C01B31/28 |
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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