发明名称 |
Catalyst, process for the production thereof, and use thereof for the preparation of vinyl acetate |
摘要 |
Surface impregnated catalyst, process for the production thereof, and use thereof for the preparation of vinyl acetate. The invention relates to Pd/K/Au, Pd/K/Ba or Pd/K/Cd supported catalysts built up in the form of an outer layer, the production thereof and also the use thereof for preparing vinyl acetate from ethylene, acetic acid and oxygen in the gas phase. The catalysts specified are produced by impregnating the support particles, while mixing intimately, with a solution of salts of the corresponding elements and then drying the support particles immediately, with the dynamic viscosity of the solution being at least 0.003 Paxs and the solution volume in impregnation being from 5 to 80% of the pore volume of the support particles.
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申请公布号 |
US5559071(A) |
申请公布日期 |
1996.09.24 |
申请号 |
US19940276445 |
申请日期 |
1994.07.18 |
申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
ABEL, ROLAND;W+E,UML O+EE RNER, KARL-FRED |
分类号 |
B01J23/63;B01J23/52;B01J23/58;B01J23/60;B01J37/02;C07C67/055;C07C69/15;(IPC1-7):B01J23/40;B01J23/42 |
主分类号 |
B01J23/63 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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