发明名称 |
PROCEDE DE REACTIVATION DES CATALYSEURS UTILISES DANS LE PROCESSU D'OBTENTION DE L'OXYDE D'ETHYLENE |
摘要 |
The efficiency of silver carrier catalysts having reduced activity for the manufacture of ethylene oxide by reacting ethylene with oxygen or air is improved by impregnating the used catalyst with a solution containing cesium and/or rubidium compounds, an aliphatic alcohol and at most 10% by weight of water. After impregnation the alcohol and optionally the water are evaporated. The cesium and/or rubidium content of the impregnating solution and the number of impregnations are adjusted to obtain on the carrier a cesium and/or rubidium concentration of from 1 to 1,000 ppm. |
申请公布号 |
RO68994(A) |
申请公布日期 |
1982.05.10 |
申请号 |
RO19760085957 |
申请日期 |
1976.04.30 |
申请人 |
HOECHST AG,DE |
发明人 |
REBSDAT,SIEGFRIED,DE;MAYER,SIGMUND,DE;ALFRANSEDER,JOSEF,DE |
分类号 |
B01J23/66;B01J23/96;B01J38/48;B01J38/52;C07B61/00;C07D301/10 |
主分类号 |
B01J23/66 |
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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