发明申请
- 专利标题： Nickel catalyst, process for the preparation thereof, process for hydrogenation of m-dinitro benzene to m-phenylene diamine
- 专利标题（中）： 镍催化剂，其制备方法，间二硝基苯氢化为间苯二胺的方法
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申请号： US11177654申请日： 2005-07-08
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公开(公告)号： US20050245766A1公开(公告)日： 2005-11-03
- 发明人: Chandrashekhar Rode , Manisha Telkar , Raghunath Chaudhari
- 申请人： Chandrashekhar Rode , Manisha Telkar , Raghunath Chaudhari
- 申请人地址： IN New Delhi
- 专利权人： Council of Scientific and Industrial Research
- 当前专利权人： Council of Scientific and Industrial Research
- 当前专利权人地址： IN New Delhi
- 主分类号： B01J21/18
- IPC分类号： B01J21/18 ; B01J23/89 ; B01J27/232 ; B01J29/06 ; B01J35/00 ; B01J37/02 ; B01J37/03 ; B01J37/16 ; B01J37/18 ; C07C209/36 ; C07C211/51 ; C07C29/36
摘要：
The present invention relates to a novel nickel catalyst. The present invention also relates to a process for the preparation of an improved nickel catalyst. The present invention also relates to a process for hydrogenation of m-dinitro benzene to m-phenylene diamine using the said improved catalyst. More particularly the present invention relates to a process involving hydrogenation of m-dinitrobenzene to m phenylene diamine in the presence of a supported bimetallic platinum catalyst, using methanol as a solvent. The catalyst system consisting of one metal selected from platinum group and other nickel supported on either carbon or alumina or silica or zeolite. The catalyst of the present invention is a bimetallic catalyst prepared by precipitation and impregnation technique at very specific preparation conditions.
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