Three-way catalysts for purification of exhaust gas and method f

Details Three-way catalysts for purification of exhaust gas and method f Three-way catalysts for purification of exhaust gas and method f

1982-01-18

1985-02-19

Shine, W. J.

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

Catalyst or precursor therefor

Boron or compound containing same

502254, 502302, 502306, 502308, 502309, 502313, 502315, 4232132, B01J 2364

Patent

active

045006504

ABSTRACT:
This invention relates to a three-way catalyst for use in the purification of exhaust gas from an internal combustion engine, a method of making the same and an exhaust system including a three-way catalyst for an internal combustion engine. Specifically, the three-way catalyst comprises a substrate suitable for the purification of exhaust gas from an internal combustion engine wherein the catalyst comprises a substrate, a refractory oxide layer, tungsten and/or one or more tungsten containing compounds and one or more platinum group metals.

REFERENCES:
patent: 3784675 (1974-01-01), Kobylinski et al.
patent: 3928238 (1975-12-01), Koberstein et al.
patent: 3945946 (1976-03-01), Hindin et al.
patent: 3963827 (1976-06-01), Catalysis
patent: 4189404 (1980-02-01), Keith et al.
Chemical Abstracts, vol. 92 of 1980, p. 291, Abs. No. 16841r.

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