Method for preparing maleic anhydride

Details Method for preparing maleic anhydride Method for preparing maleic anhydride

1978-09-22

1980-02-05

Rotman, Alan L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D30760

Patent

active

041872355

ABSTRACT:
A crystalline vanadium (IV) phosphate composition having an intrinsic surface area in excess of 10 square meters per gram is prepared by the reaction of orthophosphoric acid with a vanadium (IV) oxycompound. The vanadium compound is suspended in a suitable hydroxylic organic medium, for example isobutanol, and contacted with the acid at a temperature in the range 20.degree. C. to 210.degree. C. until the conversion is completed. The catalyst is used in the oxidation of n-butane to maleic anhydride.

REFERENCES:
patent: 4043943 (1977-08-01), Schneider

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