Process for the manufacture of a catalyst for the reduction of n

Details Process for the manufacture of a catalyst for the reduction of n Process for the manufacture of a catalyst for the reduction of n

1986-12-05

1988-06-14

Konopka, Paul E.

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

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

423239, 502217, 502527, B01J 2374, B01J 27053, C01B 2100

Patent

active

047512121

ABSTRACT:
The invention relates to a process for the manufacture of a catalyst for the reduction of nitrogen oxides in exhaust gases. The catalyst contains a metal oxide. The catalyst is preferably used for catalytic reduction with ammonia. The process comprises screening a natural goethite iron ore to the required grain size and then treating the ore with sulfuric acid. Subsequently, the goethite iron ore is heated to a temperature which approximately equals the temperature at which it will be used in the catalytic reaction.

REFERENCES:
patent: 948947 (1910-02-01), Wrampelmeier
patent: 4070440 (1978-01-01), Moriguchi et al.
patent: 4081511 (1978-03-01), Laue et al.
patent: 4087250 (1978-05-01), Laue et al.
patent: 4107272 (1978-08-01), Mori et al.
patent: 4132635 (1979-01-01), Yang

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