Catalyst for the purification of an exhaust gas

Details Catalyst for the purification of an exhaust gas Catalyst for the purification of an exhaust gas

1976-10-26

1978-11-28

Shine, W. J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252466B, 252466PT, 252473, 4232132, 4232135, B01J 2104, B01J 2310, B01J 2358, B01J 2374

Patent

active

041275101

ABSTRACT:
This invention relates to catalysts suitable for the purification of exhaust gases. In particular a catalyst according to the invention comprises a compound selected from the group represented by the general formula A.sub.x M.sub.y O.sub.z in which A is one or more metals selected from the group consisting of Li, Na, K, Mg, Ca, Sr, Ba, Al, Sc, Y, the lanthanides, Ti, Zr, V, Cr, Mn, Fe, Co, Ni, Cu, Zn; M is a metal selected from the group consisting of Ir, Rh, Pt, Pd, and Ru; y has an integral or fractional value within the range from 0.1 to 3.0, z is an integer with a value from 2 to 7 and x has a value such that the compound is electrically neutral.

REFERENCES:
patent: 3711397 (1973-01-01), Martinsons
patent: 3773894 (1973-11-01), Bernstein et al.
patent: 3897367 (1975-07-01), Lauder
patent: 3905918 (1975-09-01), Mai et al.
patent: 3907968 (1975-09-01), Kobylinski et al.
patent: 3972837 (1976-08-01), Acres et al.
patent: 4001143 (1977-01-01), McCann
Galasso, "Structure, Properties and Preparation of Perovskite-Type Compounds", p. 21, (1969).

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