Vanadium/phosphorus mixed oxide catalyst, process for its prepar

Details Vanadium/phosphorus mixed oxide catalyst, process for its prepar Vanadium/phosphorus mixed oxide catalyst, process for its prepar

1982-07-19

1988-11-15

Sneed, H. M. S.

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

Catalyst or precursor therefor

Phosphorus or compound containing same

502213, 502211, B01J 27198, B01J 27185

Patent

active

047849819

ABSTRACT:
The invention relates to a vanadium/phosphorus mixed oxide catalyst, a process for its preparation and its use for the preparation of maleic anhydride.
The catalyst according to the invention is prepared by reacting a vanadium(V) compound with phosphoric acid and/or a compound forming phosphoric acid with heating, optionally in the presence of water, and subsequently treating the product obtained after the reaction with organic solvents and/or diluents having reducing activity, optionally in the presence of a promoter, at an elevated temperature.

REFERENCES:
patent: 4016105 (1977-04-01), Kerr
patent: 4052417 (1977-10-01), Slinkard
patent: 4116868 (1978-09-01), Mount et al.
patent: 4171316 (1979-10-01), Pedersen
patent: 4222945 (1980-09-01), Higgins et al.
patent: 4225465 (1980-09-01), Brener
patent: 4293498 (1981-10-01), Lemanski et al.
patent: 4360453 (1982-11-01), Lemanski et al.
patent: 4396535 (1983-08-01), Brener et al.

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