The catalyst mixture
2011
The present invention provides a catalyst mixture, which is a catalyst for propane or isobutane vapor phase catalytic oxidation or vapor-phase catalytic ammoxidation reaction, it is possible to give the corresponding unsaturated acid or unsaturated nitrile from propane or isobutane at high yield. The catalyst is a mixture of the catalyst with propane or isobutane vapor phase catalytic oxidation reaction or vapor-phase catalytic ammoxidation reaction, the mixture ratio of the catalyst to the following formula (2) containing a complex oxide represented by the following composition formula (1) and a tungsten compound, Mo1VaNbbSbcWdZeOn (1) more than one element at least a group (formula (1), Z is selected from the group consisting of La, Ce, Pr, Yb, Y, Sc, Sr, Ba consisting of; a, b, c, d, e, n represents the atomic ratio of Mo atom of each element 1, a is 0.01≤a≤1, b is 0.01≤b≤1, c is 0.01≤c≤1, d is 0.001≤d≤ 1, e is 0≤e≤1, n represents the number of valence is determined based on the constituent metal.), 0.001 atomic ratio of tungsten atoms in the compound represented by tungsten.).
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