Silver catalysts, a process for their preparation, and their...

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B01J 23/04 (2006.01) B01J 23/50 (2006.01) B01J 23/66 (2006.01) B01J 37/02 (2006.01) C07D 301/10 (2006.01)

Patent

CA 1197227

Abstract of the disclosure: The novel silver catalysts contain 3 to 20% by weight of silver and 0.003 to 0.05% by weight of potas- sium, rubidium, cesium or a mixture thereof as promoter on a heat-resistant porous support material, all weight percentages being relative to the weight of the cata- lyst and the silver and the promoter having been applied to the support material by several impregnating steps. The novel silver catalysts are advantageously used for preparing ethylene oxide.

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