Cesium containing multimetal oxide catalyst compositions for the

Details Cesium containing multimetal oxide catalyst compositions for the Cesium containing multimetal oxide catalyst compositions for the

1994-02-25

1996-12-10

Pal, Asok

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

Catalyst or precursor therefor

Silicon containing or process of making

502204, 502205, 502243, 502254, 502255, 502311, 502344, 568476, 568477, 568479, 568480, 568481, B01J 2318, B01J 2322, B01J 2328

Patent

active

055830862

ABSTRACT:
Cesium based multimetal oxide compositions which are suitable as catalysts for the gas-phase-catalytic oxidative preparation of methacrolein from isobutene or tert-butanol or its methyl ether. The catalysts are characterized by increased selectivity for the formation of methacrolein. The catalysts have locally delimited regions of an oxide composition, preferably (Bi.sub.2 W.sub.2 O.sub.9), surrounded by the remaining constituents of the multimetal oxide.

REFERENCES:
patent: 4148757 (1979-04-01), Brazdil et al.
patent: 4212766 (1980-07-01), Brazdil et al.
patent: 4925823 (1990-05-01), Krabetz et al.
patent: 5173468 (1992-12-01), Boehning et al.
patent: 5364825 (1994-11-01), Neumann et al.

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