| 摘要 |
A novel system for the preparation of maleic anhydride by catalytic oxidation of a hydrocarbon such as butane wherein the catalyst system comprising a mixture of (1) a mixed vanadium-phosphate catalyst and (2) a noncatalytic material comprising an oxide of a Group IA-IIIA element, Pb, In, Sb, Sn, Tl, Bi or mixtures thereof.
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