Platinum-free three-way catalyst

Details Platinum-free three-way catalyst Platinum-free three-way catalyst

1988-10-28

1991-05-07

Shine, W. J.

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

Catalyst or precursor therefor

Silicon containing or process of making

502303, 502304, 4232135, B01J 2104, B01J 2310, B01J 2344, B01J 2346

Patent

active

050137050

ABSTRACT:
The invention is a three-way catalyst of active aluminum oxide, palladium, rhodium and cerium dioxide. If Al.sub.2 O.sub.3 is present as bulk carrier, the catalyst contains 5-20% by weight CeO.sub.2 and if Al.sub.2 O.sub.3 is present as a coating on a honeycombed, inert carrier, it contains 25-50% by weight CeO.sub.2.

REFERENCES:
patent: 4171287 (1979-10-01), Keith
patent: 4587231 (1986-05-01), Sawamura et al.
patent: 4678770 (1987-07-01), Wan et al.
patent: 4680282 (1987-07-01), Blanchard et al.

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