Exhaust gas purification system and catalyst therefor

Details Exhaust gas purification system and catalyst therefor Exhaust gas purification system and catalyst therefor

1993-06-02

1996-11-05

McFarlane, Anthony

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

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

502261, 502262, 502263, 502332, 502339, 502304, 502354, 4232135, B01J 2340, B01J 2342

Patent

active

055717632

ABSTRACT:
An engine exhaust gas purifying catalyst contains, as active substances, platinum and at least one of iridium, III-B metals and IV-B metals. In particular, the catalyst contains mainly platinum and iridium and, desirably, rhodium as an additive catalyst substance.

REFERENCES:
patent: 3686340 (1972-08-01), Patrick et al.
patent: 3700745 (1972-10-01), Kovach et al.
patent: 3770616 (1973-11-01), Kominami et al.
patent: 3929619 (1975-12-01), Sinfelt et al.
patent: 4111848 (1978-07-01), Torii et al.
patent: 4171287 (1979-10-01), Keith
patent: 5157007 (1992-10-01), Domesle et al.
patent: 5164350 (1992-11-01), Abe et al.

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