METHOD FOR PREPARING CATALYST FOR SYNTHESIS OF UNSATURATED ALDEHYDE AND UNSATURATED CARBOXYLIC ACID, CATALYST PREPARED BY THE METHOD, AND METHOD FOR SYNTHESIS OF UNSATURATED ALDEHYDE AND UNSATURATED CARBOXYLIC ACID USING THE CATALYST

摘要

Unsaturated aldehyde and unsaturated carboxylic acid production method of a catalyst for synthesis of the present invention, molybdenum, bismuth and kneading was added to the liquid in the particles including the iron, and the curing process, a molded article obtained by extrusion molding the extrusion molding the resultant kneaded material process, including a curing the molded article drying and / or baking step to a, and molybdenum, bismuth, and a particle containing iron as the contact time is 1 to 48 times of the liquid, curing time of the molded article contains molybdenum, bismuth and iron to characterized in that the particles and less than 50% of the contact time of the liquid. In the process of the present invention has high selectivity catalyst is obtained can be easily controlled and high activity the catalyst activity.