Process for preparing maleic anhydride

Details Process for preparing maleic anhydride Process for preparing maleic anhydride

1982-03-08

1984-05-15

Jiles, Henry R.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

252537, C07D30760

Patent

active

044489781

ABSTRACT:
In conventional procedures for the preparation of phosphorus-vanadium-oxygen catalysts, with or without promoting elements or carriers, the phosphorus compounds and vanadium compounds are mixed under conditions to form precursors. These precursors are then heated to temperatures up to 600.degree. C. to form phosphorus-vanadium-oxygen catalysts suitable for the conversion of saturated hydrocarbons, such as butane, to maleic anhydride. The present invention employs a new phosphorus-vanadium-oxygen hydrogen intermediate composition which can be converted to the precursor. Catalysts formed from the intermediate are used, according to this invention, for the conversion of saturated hydrocarbons to maleic anhydride.

REFERENCES:
patent: 3293268 (1966-12-01), Bergman et al.
patent: 4227945 (1980-09-01), Higgins et al.

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