发明名称 |
Hemihydrogenation method for dinitriles |
摘要 |
The invention concerns the hydrogenation in amine function of a nitrile function of a dinitrile to obtain the corresponding aminonitrile. More precisely, the invention concerns the hemihydrogenation of a dinitrile into the corresponding aminonitrile, in a liquid medium, characterized in that it consists in operating in the presence of a Raney nickel or cobalt catalyst containing copper and/or silver and/or gold and in the presence of an alkaline or alkaline-earth metal hydroxide. The hemihydrogenation of adiponitrile provides amino-6 capronitrile, compound which can be easily transformed by cyclization hydrolysis into caprolactam, the starting product for the synthesis of polyamide-6.
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申请公布号 |
US6521779(B1) |
申请公布日期 |
2003.02.18 |
申请号 |
US20010831148 |
申请日期 |
2001.09.25 |
申请人 |
RHODIA FIBER & RESIN INTERMEDIATES |
发明人 |
BOSCHAT VINCENT;BRUNELLE JEAN-PIERRE;DARRIER BERNARD;CHEVALJER BERNARD;BOBET JEAN LOUIS |
分类号 |
C07B61/00;C07C253/30;C07C255/24;C07D223/12;C08G69/14;(IPC1-7):C07C255/24 |
主分类号 |
C07B61/00 |
代理机构 |
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地址 |
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