Catalyst for reduction of nitrogen oxides in presence of ammonia

Details Catalyst for reduction of nitrogen oxides in presence of ammonia Catalyst for reduction of nitrogen oxides in presence of ammonia

1976-08-03

1977-07-19

Shine, W. J.

Compositions

X-ray or neutron shield

252461, 423 82, 423 83, B01J 2106, B01J 2374

Patent

active

040367851

ABSTRACT:
A catalyst for reduction of nitrogen oxides in the presence of ammonia, which can be advantageously prepared by treating titanium slag with sulfuric acid at an elevated temperature, optionally followed by treatment with an alkali, and decomposing the resulting product while heating at a temperature of about 400.degree. to 700.degree. C and has a high catalytic activity with a long catalytic life and a high resistance to acid substances.

REFERENCES:
patent: 1219277 (1917-03-01), Farup
Hayashi et al., "Reaction of NH.sub.3 and NO by Using Various Metal Oxide Catalysts," Preprint of Japan Chem. Soc. (Catalyst Div.), pp. 134-135, 1973.

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