- 专利标题： Continuous process for the preparation of diaminodicyclohexylmethane
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申请号： US10122769申请日： 2002-04-15
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公开(公告)号： US06504060B1公开(公告)日： 2003-01-07
- 发明人: Rolf Bunnenberg , Andreas Gröschl , Michael Holzbrecher , Andreas Schulze Tilling
- 申请人： Rolf Bunnenberg , Andreas Gröschl , Michael Holzbrecher , Andreas Schulze Tilling
- 优先权： DE10119135 20010419
- 主分类号： C07C20400
- IPC分类号： C07C20400
摘要：
The invention relates to a process for the preparation of diaminodicyclohexylmethane (“PACM”) with a proportion of trans,trans-4,4′-diaminodicyclohexylmethane of from 17 to 24% by hydrogenation of diaminodiphenylmethane (“MDA”) in the presence of a pulverulent catalyst in a continuously operated suspension reactor at a conversion of MDA of at least 95%, based on the amount of MDA used.