Composition and method for high temperature stable catalysts...

Details Composition and method for high temperature stable catalysts... Composition and method for high temperature stable catalysts...

B - Operations, Transporting

01

J

158/71, 252/88

B01J 21/00 (2006.01) B01D 53/86 (2006.01) B01J 23/00 (2006.01) B01J 23/652 (2006.01)

Patent

CA 1036580

ABSTRACT Catalysts having good high temperature stability which are particularly useful for selected high temperature reactions are disclosed as are methods for their preparation and use. The catalytically-active materials include platinum group metal deposited on a catalytic slip or composite which contains a mixture of ulumina, selected VIB motel oxides, and a metallic oxide or oxide mixture wherein the metal or metals are selected IIA, IVA, and IIA-IVA mixtures, selected IIA and IVB mixtures and selected IVA and IVB mixtures. The slips or carrier compositions are calcined at a temperature of at least 500°C. before deposition of platinum group metal and characterized by having a surface area of at least 20 m2/g after calcination at a temperature of 1200°C. for two hours.

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