发明授权
- 专利标题： Hydrogenation of single ring aromatic diamines
- 专利标题（中）： 单环芳族二胺的氢化
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申请号： US10051934申请日： 2002-01-17
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公开(公告)号： US06429338B1公开(公告)日： 2002-08-06
- 发明人: Juan Jesus Burdeniuc , Gamini Ananda Vedage , Bradley Heath Cook
- 申请人： Juan Jesus Burdeniuc , Gamini Ananda Vedage , Bradley Heath Cook
- 主分类号： C07C20900
- IPC分类号： C07C20900
摘要：
This invention relates to an improved process for the preparation of cyclohexylamines wherein an aromatic amine is contacted with hydrogen in the presence of a hydrogenation catalyst. The improvement resides in utilizing a hydrogenation catalyst comprised of rhodium metal, utilizing a dialkyl ether solvent, and effecting delay addition of the aromatic diamine to the reaction medium.
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