METHOD OF PREPARING MIXED METAL OXIDE CATALYSTS FOR OXIDATIVE AMMONOLYSIS AND/OR OXIDATION OF LOWER ALKANES Russian patent published in 2013 - IPC B01J37/12 B01J37/04 C07C253/24 

FIELD: chemistry.

SUBSTANCE: invention relates to methods of preparing catalyst precursors. Described are methods of preparing solid precursors of mixed oxide catalysts for producing acrylonitrile or methacrylonitrile from propane or isobutane via gas-phase oxidative ammonolysis, which contain molybdenum (Mo), vanadium (V), antimony (Sb), niobium (Nb), oxygen (O), which involve preparing a reaction mixture containing said elements, wherein the reaction mixture is prepared by contacting only one of compounds of antimony, molybdenum and vanadium with hydrogen peroxide before mixing with starting compounds of the rest of the elements contained in the mixed oxide catalysts, and hydrogen peroxide is taken in such an amount that molar ratio of hydrogen peroxide and antimony in the catalysts is in the range of 0.01-20.

EFFECT: high activity and selectivity of the catalysts.

19 cl, 1 dwg, 4 tbl, 12 ex