Rhodium-free three-way catalyst

Details Rhodium-free three-way catalyst Rhodium-free three-way catalyst

1988-10-28

1991-03-19

Shine, W. J.

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

Catalyst or precursor therefor

Silicon containing or process of making

502303, 502304, B01J 2104, B01J 2310, B01J 2342, B01J 2344

Patent

active

050011030

ABSTRACT:
The invention is a three-way catalyst of active aluminum oxide, palladium, platinum 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: 3993572 (1976-11-01), Hindin et al.
patent: 4171287 (1979-10-01), Keith
patent: 4316822 (1982-02-01), Fujitani et al.
patent: 4587231 (1986-05-01), Sawamura et al.
patent: 4678770 (1987-07-01), Wan et al.

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