Method of preparing a catalyst

Details Method of preparing a catalyst Method of preparing a catalyst

1976-10-18

1983-08-09

Shine, W. J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252463, 252466PT, 252466J, 252472, 4232135, B01J 2104, B01J 2340

Patent

active

043977707

ABSTRACT:
A catalyst suitable for use in the treatment of motor vehicle exhaust emissions is made by contacting a substrate, preferably of an aluminium bearing ferritic alloy, with a first sol of refractory material followed by drying and firing, and preferably then contacting with a second sol of refractory material, which additionally contains a salt convertible to catalytic material, followed by drying and firing. The sols are obtained from refractory material, e.g., alumina, made by a vapor phase condensation method.

REFERENCES:
patent: 3899444 (1975-08-01), Stephens
patent: 3920583 (1975-11-01), Pugh
patent: 3944504 (1976-03-01), Ford et al.
patent: 4006103 (1977-02-01), Meguerian et al.

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