Phosphorus-antimony-containing catalyst for oxidation

Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Phosphorus or compound containing same

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502249, B01J 27182, B01J 27186

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active

049468197

ABSTRACT:
A phosphorus-antimony-containing catalyst for oxidation, which is obtained by calcining a metal oxide composition containing as essential components, (a) antimony, (b) at least one element selected from the group consisting of iron, cobalt, nickel, tin, uranium, chromium, copper, manganese, titanium, thorium, and cerium, and (c) silica, at a temperature ranging from 500.degree. C. to 950.degree. C. to prepare a base catalyst, impregnating the base catalyst with a solution containing a phosphorus compound so that the atomic ratio of impregnated phosphorus to antimony the base catalyst is within the range of from 0.01:1 to 2:1, drying the impregnated base catalyst, and calcining the dried product at a temperature ranging from 300.degree. C. to 850.degree. C. The catalyst exhibits satisfactory activity and strength and can be prepared with satisfactory reproducibility.

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