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1.发明授权Silver catalyst for production of ethylene oxide from ethylene, and process for production thereof 失效用于从乙烯生产乙烯氧化物的银催化剂及其生产方法
公开(公告)号：EP0172565B1
公开(公告)日：1991-03-13
申请号：EP85110458.8
申请日：1985-08-20
IPC分类号： B01J23/50 , B01J23/66 , B01J23/68 , B01J37/10 , C07D301/10
CPC分类号： C07D301/10 , B01J23/50 , B01J23/66 , B01J23/68 , B01J23/681 , Y02P20/52
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2.发明公开Silver catalyst for production of ethylene oxide from ethylene, and process for production thereof 失效银催化剂用于从乙烯和过程及其制备生产环氧乙烷的。
公开(公告)号：EP0172565A2
公开(公告)日：1986-02-26
申请号：EP85110458.8
申请日：1985-08-20
IPC分类号： B01J23/50 , B01J23/66 , B01J23/68 , B01J37/10 , C07D301/10
CPC分类号： C07D301/10 , B01J23/50 , B01J23/66 , B01J23/68 , B01J23/681 , Y02P20/52
摘要： A catalyst for the production of ethylene oxide from ethylene, said catalyst comprising a porous carrier composed of a molded article of a refractory material and at least silver grains deposited on the carrier, wherein
(A) silver is distributed on the outside surface of the carrier and on the inner surfaces of the pores of the carrier,
(B) silver grains distributed on the inner surfaces of the pores of the carrier have an average diameter of 0.05 to 0.4 micron, and
(C) the loading (S) of silver on the outside surface layer of the catalyst and the loading (I) of silver on the innermost layer of the catalyst satisfy the following expression
and a process for producing a catalyst for the production of ethylene oxide from ethylene, which comprises impregnating an aqueous solution containing a silver salt and an amine as a complex forming agent in a porous carrier composed of a molded article of a refractory material, and heating the carrier with superheated steam to deposit silver on the carrier.
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