High temperature stable catalyst composition and method for its

Details High temperature stable catalyst composition and method for its High temperature stable catalyst composition and method for its

1976-04-05

1977-11-01

Shine, W. J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252455R, B01J 2104, B01J 2310, B01J 2364

Patent

active

040564894

ABSTRACT:
Catalysts having good high temperature stability which are particularly used 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 catalyst slip or composite which contains a mixture of alumina, a rare earth metal oxide, and a mixture of metallic oxides of selected IIA and IVA metals and selected VIB metals. The slips or carrier compositions are calcined at a temperature of at least 500.degree. C. before deposition of platinum group metal and characterized by having a surface area of at least 20 m.sup.2 /g after calcination at a temperature of 1200.degree. C. for 2 hours.

REFERENCES:
patent: 3360330 (1967-12-01), Hoekstra
patent: 3741725 (1973-06-01), Graham

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