Perovskite catalysts and process for their preparation

Details Perovskite catalysts and process for their preparation Perovskite catalysts and process for their preparation

1976-04-13

1977-10-25

Shine, W. J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252461, 252463, 252467, 252471, 252472, 252475, 252476, B01J 2104, B01J 2302, B01J 2310, B01J 2378

Patent

active

040555135

ABSTRACT:
A high surface area perovskite catalyst comprises a perovskite containing at least one transition metal composited with a spinel-coated metal oxide support. The catalyst is prepared by forming a surface spinel on a metal oxide and subsequently co-impregnating or co-depositing the appropriate perovskite precursor component on the spinel coated metal oxide, followed by calcination at a temperature of at least 540.degree. C. A preferred catalyst is LaCoO.sub.3 supported on a spinel-covered alumina.

REFERENCES:
patent: 3368982 (1968-02-01), Milbourne
patent: 3901828 (1975-08-01), Mai et al.

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