Process for the production of maleic anhydride

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

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549259, C07D30760

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active

048554596

ABSTRACT:
Maleic anhydride is produced by the catalytic vapor phase partial oxidation of a nonaromatic hydrocarbon having at least four carbon atoms in a straight chain with molecular oxygen or a molecular oxygen-containing gas in the presence of phosphorus-vanadium mixed oxide oxidation catalyst. The catalyst is diluted with an inert solid material in an amount sufficient to form a catalyst-inert solid material composition effective to stabilize the maleic anhydride yield such that the average yield decay is less than 0.30% of the established initial maleic anhydride yield per month over an extended period of sustained operations.

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