Fixed bed catalyst
AssigneeNational Distillers and Chemical Corporation
InventorOrville D. Frampton
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Abstract
An improved fixed bed catalyst is disclosed and comprises the active catalyst material supported on a particular type of porous silica xerogel which has been treated with steam under particular temperature conditions.
Claims18
In a catalyst comprising an active catalytic material and a preformed support, wherein the active catalytic material is a metal, salt, oxide, acid, alloy, or heteropolyacid of an element of Groups I B, II B, IV B, V, VI B, VII B and VIII of the Periodic Table of Elements and mixtures thereof, the improvement which comprises employing as the support a regular or intermediate density silica xerogel which has been steam treated at a temperature up to 300.degree. C.
In a catalyst comprising an active catalytic material and a pre-formed support, wherein said active catalytic material is palladium, the improvement which comprises employing as the support a regular or intermediate density silica xerogel which has been steam treated at a temperature up to 300.degree. C.
A process for the preparation of a supported catalyst comprising steam treating an intermediate density or regular density silica xerogel at a temperature of 149.degree.-300.degree. C., impregnating the resulting steam treated xerogel with an aqueous solution of a palladium salt, and converting the palladium salt to palladium metal by contact with an alkaline solution of a reducing agent.
Dependencies are inferred from the claim text.