Cobalt oxide-based catalytic substances for the oxidation of amm

Details Cobalt oxide-based catalytic substances for the oxidation of amm Cobalt oxide-based catalytic substances for the oxidation of amm

1976-02-09

1977-07-19

Peters, G. O.

Chemistry of inorganic compounds

Nitrogen or compound thereof

Oxygen containing

C01B 2126

Patent

active

040369358

ABSTRACT:
The invention concerns catalytic substances for the oxidation of ammonia, for the production of nitric acid, comprising cobalt oxide as the main component. Such substances, besides cobalt oxide, also contain additives formed of aluminum oxide and possibly oxides of thorium, cerium, zinc and cadmium, the amount of aluminum oxide added being from 5% to 15% by weight of the finished substances and the amount of the other oxides being from 0 to 25% by weight of the finished substances; these substances are in particular shaped by pelleting or extrusion, dried and then calcined at temperatures of the order of from 900.degree. to 1000.degree. C. The advantages of these catalytic substances lie in a high degree of activity and a high level of strength, which are maintained during use thereof.

REFERENCES:
patent: 1399807 (1921-12-01), Scott
patent: 3752774 (1973-08-01), Stiles
patent: 3850851 (1974-11-01), Koberstein et al.
patent: 3853790 (1974-12-01), Vosolbe et al.
patent: 3888792 (1975-06-01), Hughes
patent: 3907975 (1975-09-01), Senes

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