Single phase vanadium(IV)bis(metaphosphate) oxidation catalyst w

Details Single phase vanadium(IV)bis(metaphosphate) oxidation catalyst w Single phase vanadium(IV)bis(metaphosphate) oxidation catalyst w

1979-12-13

1981-01-27

Gantz, Delbert E.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252437, 252430, 252440, 423314, B01J 2714, B01J 3102, B01J 2702, C01B 1516

Patent

active

042474191

ABSTRACT:
A method for the preparation of a single phase crystalline vanadium(IV)bis(metaphosphate), VO(PO.sub.3).sub.2, catalyst having an improved intrinsic surface area of from about 5 to 15 m.sup.2 /g. and useful for the vapor phase oxidation of linear C.sub.4 unsaturated olefins, such as n-butenes, to prepare maleic anhydride.

REFERENCES:
patent: 3031508 (1962-04-01), Etherington et al.
patent: 3293268 (1966-12-01), Bergman et al.
patent: 3977998 (1976-08-01), Fuerker et al.
patent: 4043943 (1977-08-01), Schneider
patent: 4092269 (1978-05-01), Mount et al.
patent: 4165299 (1979-08-01), Pedersen
patent: 4171316 (1979-10-01), Pedersen

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