发明授权
- 专利标题： Process of preparing aromatic amines
- 专利标题（中）： 制备芳香胺的方法
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申请号： US51548674申请日： 1974-10-17
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公开(公告)号： US3920743A公开(公告)日： 1975-11-18
- 发明人: BAESSLER KONRAD , MAYER KURT
- 申请人： HOECHST AG
- 专利权人： Hoechst AG
- 当前专利权人： Hoechst AG
- 优先权： US51548674 1974-10-17; US36652873 1973-06-04
- 主分类号： B01J23/42
- IPC分类号： B01J23/42 ; B01J37/20 ; C07C85/11
摘要：
Sulfided platinum on carbon catalysts being useful in the selective hydrogenation of halonitroaromates are obtained by saturating a particulate platinum on carbon catalyst with hydrogen in an acidic aqueous medium and treating it with defined amounts of a sulfidizing agent. Said catalysts maintain their activity and selectivity for numerous hydrogenations.
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