Catalyst for purification of exhaust gases

Details Catalyst for purification of exhaust gases Catalyst for purification of exhaust gases

1990-07-06

1991-12-24

Shine, W. J.

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

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

502304, 4232135, B01J 2104, B01J 2310, B01J 2358

Patent

active

050752758

ABSTRACT:
A catalyst is comprised of a catalyst carrier and a coat layer containing cerium particles, active alumina particles and a catalyst component of a noble metal; and barium barium oxide is immobilized on the cerium oxide particles. The catalyst can suppress the growth of crystals of cerium oxide due to the immobilization of the barium oxide thereon, thereby improving heat resistance of the catalyst.

REFERENCES:
patent: 4539311 (1985-09-01), Harrison et al.
patent: 4581343 (1986-04-01), Blanchard et al.
patent: 4624940 (1986-11-01), Wan et al.
patent: 4782038 (1988-11-01), Gandai et al.
patent: 4843056 (1989-06-01), Matsumoto et al.
patent: 4965243 (1990-10-01), Yamada et al.

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