Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1976-05-14
1978-08-29
Shine, W. J.
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
252462, 252466PT, 252471, 252473, 4232135, B01J 2104, B01J 2358, B01J 2362, B01J 2364
Patent
active
041102584
ABSTRACT:
Barium compounds having the general formula ABO.sub.3 and a perovskite crystal structure wherein about from 1% to 20% of the B site cations are ions of a platinum metal and the remainder are ions of metals having atomic radii between about 0.4 and 1.4 Angstroms are useful as catalysts for gaseous oxidation and reduction reactions, particularly for the cleanup of exhaust gases of internal combustion engines.
REFERENCES:
patent: 3900428 (1975-08-01), Mai et al.
patent: 3901828 (1975-08-01), Mai et al.
patent: 3907968 (1975-09-01), Kobylinski et al.
Donohue et al., Inorganic Chemistry, vol. 5, pp. 339-342 (1966).
E. I. du Pont de Nemours & Company
Shine W. J.
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