Patent ID: 9744524
Date: 2017-08-29
CPC Classifications: B01J,C07C

Claim:
1. A molybdenum based composite oxide catalyst having the following formula: wherein M is one of V, Cr, Mn, Fe, Co, Ni or Cu; N is one of Na, K, Cs, Ca and Ba, or a mixture of two or more thereof in any ratio; x=0.5-20; y=0.05-20; z=0.01-5; a is a number satisfying the valance of each atom; wherein the catalyst is prepared by the method comprising the steps of: (1) weighing bismuth molybdate and oxide precursors of other metal elements according to the proportions of ingredients in the above formula, grinding and sieving to obtain a mixture; (2) transferring the mixture to a ball mill jar, ball milling same to produce the molybdenum based composite oxide catalyst.