Composite catalyst for clarifying exhaust gas containing nitroge

Details Composite catalyst for clarifying exhaust gas containing nitroge Composite catalyst for clarifying exhaust gas containing nitroge

1976-02-19

1977-07-12

Dees, Carl F.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252454, 252455R, 423239, B01J 2910, B01J 2920

Patent

active

040352633

ABSTRACT:
A composite catalyst which is capable of clarifying exhaust gas containing nitrogen oxides therein with a high effectiveness over a long period of time while producing no or a very small amount of undesirable by-products such as ammonia, which comprises a catalytic ingredient comprising oxides of nickel and copper in an atomic ratio of nickel to copper of 1:0.05 through 1 and a catalytic base comprising a refractory inorganic material containing at least 50% by weight of zircon therein, said catalytic ingredient being carried on said catalytic base.

REFERENCES:
patent: 3544264 (1970-12-01), Hardison
patent: 3552913 (1971-01-01), Stephens
patent: 3806582 (1974-04-01), Keith et al.
patent: 3842158 (1974-10-01), Hansford

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