发明授权
- 专利标题: Method for preparing cycloaliphatic diamines from aromatic diamines
- 专利标题(中): 从芳族二胺制备脂环族二胺的方法
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申请号: US160821申请日: 1998-09-25
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公开(公告)号: US6075167A公开(公告)日: 2000-06-13
- 发明人: Hoon Sik Kim , Kun Yu Park , Young Soo Kwon , Moon Jo Chung , Byung Gwon Lee
- 申请人: Hoon Sik Kim , Kun Yu Park , Young Soo Kwon , Moon Jo Chung , Byung Gwon Lee
- 申请人地址: KRX Seoul
- 专利权人: Korea Institute of Science and Technology
- 当前专利权人: Korea Institute of Science and Technology
- 当前专利权人地址: KRX Seoul
- 优先权: KRX97-51416 19971007
- 主分类号: C07C211/18
- IPC分类号: C07C211/18 ; C07C209/72 ; C07C211/36 ; C07C209/00
摘要:
This invention relates to a method for preparing cycloaliphatic diamines by hydrogenating aromatic diamines in the presence of a supported ruthenium catalyst and a metal nitrite as a catalyst promoter to increase the rate of the hydrogenation reaction and decrease the amount of higher boiler by-products.
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