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公开(公告)号:US06429338B1
公开(公告)日:2002-08-06
申请号:US10051934
申请日:2002-01-17
IPC分类号: C07C20900
CPC分类号: C07C209/72 , C07C211/18
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.
摘要翻译: 本发明涉及一种制备环己胺的改进方法,其中芳族胺在氢化催化剂存在下与氢接触。 改进在于利用由铑金属组成的氢化催化剂,利用二烷基醚溶剂,并且将芳族二胺延迟加入到反应介质中。