| 摘要 |
A method for the production of maleic anhydride in which a hydrocarbon of 4 to 6 carbon atoms is subjected to a vapor phase catalytic oxidation reaction in the presence of a metal oxide catalyst, characterized in that the metal oxide catalyst includes a metal oxide containing Mo, V, Te and X (X representing one or more elements selected from the group consisting of Nb, Ta, W, Ti, Al, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ni, Pd, Pt, Sb, Bi, B, In, P and Ce) as constituent elements thereof, and the proportion of Mo to the total metal elements in the metal oxide is 0.25 or greater in terms of the atomic ratio, and the atomic ratio of each of the other constituent elements V, Te and X with respect to Mo is in the range of 0.01-1.0. According to the method, the object maleic anhydride may be produced at a high yield using a hydrocarbon of 4 to 6 carbon atoms, particularly n-butane, as the starting material.
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