| 摘要 |
A catalyst suitable for use in the production of unsaturated aldehyde and unsaturated carboxylic acid through vapour phase oxidation of one or more compound selected from propylene, isobutylene, t-butanol and methyl-t-butyl ether with molecular oxygen or molecular oxygen-containing gas, which catalyst is characterized in that it is a complex oxide composition comprising (A) a complex oxide comprising molybdenum, bismuth and iron, which is known per se as a catalyst for vapour phase catalytic oxidation reaction, and (B) a complex oxide comprising cerium and zirconium.
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