METHOD OF MANUFACTURING CATALYST FOR MANUFACTURING UNSATURATED ALDEHYDE AND/OR UNSATURATED CARBOXYLIC ACID AND THE CATALYST, AND METHOD OF MANUFACTURING ACROLEIN AND/OR ACRYLIC ACID USING THE CATALYST

摘要

PROBLEM TO BE SOLVED: To provide a method of efficiently and stably manufacturing a catalyst having excellent mechanical strength for manufacturing respectively corresponding unsaturated aldehyde and/or unsaturated carboxylic acid by performing catalytic gas phase oxidation on propylene, isobutylene or TBA under the presence of molecular oxygen.

SOLUTION: In the method of manufacturing the catalyst carrying a catalytic active component containing molybdenum, bismuth and iron as essential components by an inert carrier, powder and granular product of the catalytic active component and/or its precursor and the inert carrier are continuously supplied to a carrying treatment device used in a carrying treatment process, and the supply amount (per volume) of the powder and granular product of the catalytic active component and/or its precursor is controlled to a range of 1 to 10 times per hour relative to the volume of the carrying treatment device.

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