发明名称 |
Katalysator für die Oxidation von Ethylen zu Ethylenoxid. |
摘要 |
An improved silver catalyst for the oxidation of ethylene with molecular oxygen is made by impregnating a support with a silver salt prepared by reacting a silver compound with a neo-acid, in a hydrocarbon solvent with the reaction completed under reflux conditions; drying and activating the resultant precatalyst by heating in air; thereafter impregnating the activated catalyst with an amount, 800 to 5000 wppm of alkali metal, preferably Cs, to deactivate the catalyst to form a catalyst precursor and heating the catalyst precursor at 450-700 DEG C for 0.1 to 4.5 hours at a steady state in a substantially inert atmosphere to reactivate it. |
申请公布号 |
DE68918349(T2) |
申请公布日期 |
1995.01.19 |
申请号 |
DE1989618349T |
申请日期 |
1989.06.26 |
申请人 |
SCIENTIFIC DESIGN CO. INC., LITTLE FERRY, N.J., US |
发明人 |
LIU, KINDTOKEN H., PARK RIDGE NEW JERSEY 07656, US |
分类号 |
B01J37/02;B01J23/66;C07B61/00;C07D301/10 |
主分类号 |
B01J37/02 |
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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