Compositions and methods for high temperature stable catalysts

Details Compositions and methods for high temperature stable catalysts Compositions and methods for high temperature stable catalysts

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B01J 21/00 (2006.01) B01D 53/86 (2006.01) B01J 23/00 (2006.01) B01J 23/10 (2006.01) B01J 23/24 (2006.01) B01J 23/40 (2006.01) B01J 23/56 (2006.01) B01J 35/10 (2006.01)

Patent

CA 1036577

ABSTRACT Catalysts having good high temperature stability which are particularly useful for selected hihg 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 alumina, a rare earth metal oxide, and a metallic oxide wherein the metal is IVB, selected VIB metals, and mixtures thereof. The slip or carrier compositions are calcined at a temperature of at least 850°C. before deposition of plantinum group metal and characterized by having a surface area of at leas. 20 m2/g after calcina?ion at a temperature of 1200°C. for two hours.

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