Catalyst for purifying exhaust gases from internal combustion en

Details Catalyst for purifying exhaust gases from internal combustion en Catalyst for purifying exhaust gases from internal combustion en

1990-07-30

1991-12-17

Shine, W. J.

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

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

4232135, B01J 2104, B01J 2106, B01J 2310, B01J 2340

Patent

active

050735322

ABSTRACT:
A catalyst is described made of active aluminum oxide with additives of CeO.sub.2, ZrO.sub.2, and Fe.sub.2 O.sub.3 and/or NiO as carrier and an active phase, applied thereon and consisting of platinum, palladium and/or rhodium, and a base metal, which is obtainable by impregnation of the additive-containing carrier with solutions of salts of the metals for the active phase, wherein the base metal of the active phase is cerium, by drying, and by heating to 250.degree. to 650.degree. C. The catalyst can be used for the oxidation and/or reduction of exhaust gases from internal combustion engines.

REFERENCES:
patent: 4239656 (1980-12-01), Fujitani et al.
patent: 4299734 (1981-12-01), Fujitani et al.
patent: 4316822 (1982-02-01), Fujitani et al.
patent: 4367166 (1983-01-01), Fujitani et al.
patent: 4617794 (1986-10-01), Fujitani et al.
patent: 4661329 (1987-04-01), Suzuki et al.
patent: 4801620 (1989-01-01), Fujitani et al.
patent: 4957710 (1990-09-01), Nagai et al.

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