发明名称 |
Carrier catalyst for the preparation of vinyl acetate from ethylene, acetic acid and oxygen in the gaseous phase |
摘要 |
The carriers contain common active components, namely noble metals of the 8th sub-group or compounds thereof, and as activators alkali metal compounds, alkaline earth metal compounds or cadmium compounds. The carriers, too, consist of common materials, such as silicic acid. A novel feature is to be seen in the shape of the carrier particles which are designed as rod sections having a star-shaped cross section (FIGS. 1 to 7) or as ribbed rods (FIG. 8). In relation to the apparent density and thus in relation to the amount of noble metal employed, a considerably higher space-time yield is reached than with carrier particles of a conventional shape.
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申请公布号 |
US4370261(A) |
申请公布日期 |
1983.01.25 |
申请号 |
US19790020038 |
申请日期 |
1979.03.13 |
申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
WUNDER, FRIEDRICH;QUADFLIEG, THERESE;ROSCHER, GUENTER;HECK, GUENTHER |
分类号 |
C07C67/05;B01J23/58;B01J23/60;B01J23/66;B01J31/00;B01J35/02;C07B61/00;C07C67/055;C07C69/14;C07C69/15;(IPC1-7):B01J21/08;B01J23/38;B01J35/00 |
主分类号 |
C07C67/05 |
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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