Catalyst containing iron, chromium, potassium and lanthanum oxid

Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – Clay

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502303, B01J 2116, B01J 2310

Patent

active

045350671

ABSTRACT:
There are described catalysts containing, as oxides, iron, chromium and potassium, the latter being optionally partly in form of kaliophyllite Al.sub.2 O.sub.3, 2 SiO.sub.2, K.sub.2 O, as well as lanthanum, in a proportion, calculated in oxide weight, of 1-15% with respect to the final catalyst.
The presence in the catalyst of lanthanum oxide, optionally previously combined with cobalt or vanadium, at least in part in the form of a mixed oxide of the perovskite type, confers to the catalyst an improved activity and/or selectivity in dehydrogenation reactions, particularly of ethylbenzene to styrene.

REFERENCES:
patent: 3595809 (1971-07-01), Kehl
patent: 3897367 (1975-07-01), Lauder
patent: 4134858 (1979-01-01), Courty
patent: 4152300 (1979-05-01), Riesser

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