The synthetic mannered null propylene, isobutylene, tert-buchiru alcohol or methyl of unsaturated aldehyde and the unsaturated carboxylic acid which use the catalytic converter, and this catalytic converter which are produced by the production manner and this manner

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a catalyst for synthesizing an unsaturated carboxylic acid by which catalytic activity is readily controlled and a catalyst having high activity and high selectivity is obtained and to provide a catalyst produced by the method and to provide a method for synthesizing the unsaturated aldehyde and the unsaturated carboxylic acid in a high yield by using the catalyst.;SOLUTION: This method for producing the catalyst for synthesizing the unsaturated aldehyde and the unsaturated carboxylic acid comprises a step for adding a liquid to particles containing molybdenum, bismuth and iron, kneading the particles with the liquid and carrying out extrusion forming of the kneaded material, a step for curing the resultant formed article and a step for drying and/or baking the formed article. In the method, a contact time of particles containing molybdenum, bismuth and iron with the liquid is 1-48 hr and curing time of the molded article is 50% of the contact time of particles containing molybdenum, bismuth and iron with the liquid.;COPYRIGHT: (C)2003,JPO