发明名称 |
PROCESS FOR THE PREPARATION OF DOLLAR G(E)-CAPROLACTAM |
摘要 |
The invention relates to a process for the preparation of epsilon -caprolactam starting from 6-aminocapronitrile by hydrolysis/oligomerisation followed by de-oligomerisation/cyclisation using superheated steam characterized in that the hydrolysis/oligomerisation is performed with superheated steam converting 6-aminocapronitrile into a molten phase and a gas phase comprising ammonia, ammonia is continuously separated off and the de-oligomerisation/cyclisation is performed by treating the molten phase further with superheated steam. The invention also relates to a process for the preparation of epsilon -caprolactam starting from 6-aminocapronitrile by hydrolysis/oligomerisation followed by de-oligomerisation/cyclisation characterized in that the preparation is performed in a horizontal scraped-surface reactor, the hydrolysis/oligomerisation is performed with superheated steam converting 6-aminocapronitrile into a molten phase and a gas phase comprising ammonia, ammonia is continuously separated off and the de-oligomerisation/cyclisation is performed by treating the molten phase further with superheated steam.
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申请公布号 |
WO02076943(A1) |
申请公布日期 |
2002.10.03 |
申请号 |
WO2002NL00190 |
申请日期 |
2002.03.22 |
申请人 |
DSM N.V.;BUIJS, WIM;WOLTERS, HENDRICUS, FRANCISCUS, WILHELMUS |
发明人 |
BUIJS, WIM;WOLTERS, HENDRICUS, FRANCISCUS, WILHELMUS |
分类号 |
C07D201/08;C07D201/12;C07D201/16;C08G69/16;C08L77/00;(IPC1-7):C07D201/08 |
主分类号 |
C07D201/08 |
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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