Patent ID: 7414008
Filing Date: 2008-08-19
Classification: B01J,C07C

Abstract:
1. A process for producing a catalyst comprising the steps of: (A) carrying out heat treatment of an aqueous solution or slurry of a starting material comprising molybdenum, bismuth, and iron, while controlling at least one of a temperature of a heated gas, a linear velocity of a heated gas and a heating period of time, to give a catalyst precursor P1 having an ignition loss ratio of at least 10% by mass and less than 40% by mass, (B) adding a binder to the precursor P1, and mixing the binder with the precursor P1, to give a catalyst precursor P2, and (C) molding and calcining the precursor P2, to give a catalyst, wherein said ignition loss ratio is obtained from the equation: