Method of making a washcoat mixture and catalyst for treatment o

Details Method of making a washcoat mixture and catalyst for treatment o Method of making a washcoat mixture and catalyst for treatment o

1992-11-27

1993-12-21

Shine, W. J.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Silicon containing or process of making

502439, B01J 2106, B01J 2108, B01J 2364, B01J 3200

Patent

active

052721256

ABSTRACT:
A catalyst support is formed from powders of silica, titania and vanadia and optionally a silicate-based clay by applying a wet mixture of such powders to a support substrate and drying and calcining. When impregnated with platinum or palladium, the catalyst support reduces hydrocarbon and particulate emission in diesel exhaust and also prevents formation of mutagens in the exhaust. Advantageously, the catalyst support minimizes reaction with sulfur.

REFERENCES:
patent: 4459372 (1984-07-01), Arena
patent: 4929586 (1990-05-01), Hegedus et al.
patent: 5157007 (1992-10-01), Domesle et al.
T. Shikada et al, Ind. Eng. Chem. Prod. Res. Dev., vol. 20, No. 1, pp.: 91-95, 1981.
C. U. Odenbrand et al, Appl. Catalysis, 18, pp.: 335-336, 1985.
E. T. C. Vogi et al, Journal of Catalysis 114, pp.: 313-314, 1988.

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