Silver catalyst and a process for preparing same
AssigneeThe Dow Chemical Company
InventorsJacobus E. Bongaarts, Garmt R. Meima, John W. Geus
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Abstract
A supported silver catalyst having improved thermostability is prepared by depositing silver particles on a carrier or support having a stepped structure.
Claims8
A process for the catalytic selective oxidation of ethylene to ethylene oxide which process comprises contacting ethylene with oxygen in the presence of a catalytic amount of a catalyst under conditions sufficient to convert the ethylene to ethylene oxide, said catalyst comprising a thermostable, inert carrier consisting essentially of alpha-aluminum oxide to which finely-divided silver partices have been applied, said carrier having a surface wherein at least about 1 percent of the carrier surface is provided with a stepped structure as a result of treatment of the carrier with acid.
Dependencies are inferred from the claim text.