Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1985-07-24
1987-03-31
Shine, W. J.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
423363, B01J 2104, B01J 2378
Patent
active
046543201
ABSTRACT:
An iron oxide containing precursor to a catalyst for e.g. ammonia synthesis, having a surface area above 10 m.sup.2 .multidot.g.sup.-1 also containing alumina and an alkaline earth. The alkaline earth may be present as an alkaline earth aluminate. The composition may be made by precipitation followed by calcination. For use as an ammonia synthesis catalyst precursor, an alkali metal, e.g. potassium, is preferably incorporated into the composition to promote catalytic activity. The presence of "free" alkaline earth, as opposed to alkaline earth aluminate reduces the amount of alkali metal required.
REFERENCES:
patent: 2919176 (1959-12-01), Gross
patent: 4049582 (1977-09-01), Erickson et al.
Rubinshtein et al., "Complex Investigation of Iron Catalysts of Ammonia Synthesis", Translation in Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science, No. 10, pp. 1646-1650 (Oct. 1966).
Rubinshtein et al., "Extensive Study of the Iron Catalysts of Ammonia Synthesis", Kinetika i Kataliz, 1965, 6(2), pp. 285-293.
Imperial Chemical Industries plc
Shine W. J.
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