Catalysts for ammonia synthesis

Details Catalysts for ammonia synthesis Catalysts for ammonia synthesis

1986-04-16

1987-10-06

Shine, W. J.

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

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

502175, 502184, 502313, 502324, 423363, B01J 2104, B01J 2118, B01J 2378

Patent

active

046983252

ABSTRACT:
High surface area, e.g. precipitated, ammonia catalyst precursors are promoted with an alkali metal salt of a transition metal acid, e.g. potassium ferrate, ferrite, permanganate, ruthenate, chromate, or ferrocyanide. The use of such promoters in place of potassium carbonate enables the catalyst to be activated at lower temperatures thus reducing the risk of sintering of the active metal.

REFERENCES:
patent: 1750551 (1930-03-01), Uhde
patent: 4309311 (1982-01-01), Johnson et al.
Rubinshtein et al, Kinetika i Katiliz, 1965 (6), No. (2), pp. 285-293.
Chemical Abstracts 69, 70333 (1968).
Chemical Abstracts 90, 157736a, 157737b, 157738c, 157739d (1979).

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