The production mannered null molybdenum of unsaturated aldehyde and the catalytic converter and the production manner, and unsaturated aldehyde and unsaturated carboxylic acid for unsaturated carboxylic acid

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a catalyst for synthesizing an unsaturated aldehyde and an unsaturated carboxylic acid excellent in mechanical strength, activity and a yield, and the catalyst, and to provide a method for producing the unsaturated aldehyde and the unsaturated carboxylic acid by use of the catalyst.;SOLUTION: In this method for producing a complex oxide catalyst essentially consisting of molybdenum, bismuth and iron, a mass reduction rate L1 in a range of the room temperature to 110°C of a catalyst precursor obtained by performing heat treatment after mixing starting materials of catalyst component elements is adjusted into a range of 0.5-10 mass%, and the precursor is shaped and baked.;COPYRIGHT: (C)2012,JPO&INPIT