CATALYST FOR PRODUCTION OF UNSATURATED ALDEHYDE AND UNSATURATED CARBOXYLIC ACID AND PROCESS FOR PRODUCING THE SAME

摘要

A process for producing a catalyst for the production of an unsaturated aldehyde and unsaturated carboxylic acid which comprises: a step in which an aqueous slurry containing molybdenum, bismuth, and iron is spray-dried to produce dry particles, which may be further heated to obtain burned particles, to thereby produce catalyst ingredient particles; a step in which the catalyst ingredient particles are mixed with at least a liquid and the mixture is kneaded; a primary molding step in which the resultant composition is primarily molded; and a secondary molding step in which the resultant primary molding is molded into a final shape with a piston molding machine. This catalyst has high catalytic activity and excellent selectivity.