Catalyst for controlling emissions

Details Catalyst for controlling emissions Catalyst for controlling emissions

1996-03-11

1998-11-10

Bell, Mark L.

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

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

502300, 502304, 502318, 502325, 502327, 502334, 502335, 502336, 502232, 502237, 502240, 502241, 502242, 502244, 502 61, 502 64, 502 65, 4232132, 4232135, 4232392, B01J 2370, B01J 802, B01J 2906

Patent

active

058343954

ABSTRACT:
Catalyst for controlling emissions of the present invention is comprised of at least one kind of transition metal atoms and at least one of Al or Si, wherein said transition metal atoms form a part of the surface of the catalyst for purifying exhaust gas. Accordingly, the catalyst for purifying exhaust gas has both high performance for purifying NO.sub.x and high heat resistance, because monoatomic active metal disperses in the catalyst structure, active metal is taken firmly in the structure, and said transition metal forms a part of the surface of the surface.

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patent: 5358916 (1994-10-01), Shiokawa et al.
patent: 5462905 (1995-10-01), Nagami et al.
patent: 5514355 (1996-05-01), Eshita et al.

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