CATALYST BASED ON BISMUTH MOLYBDATE, METHOD FOR PRODUCTION THEREOF AND USE OF SUCH CATALYST IN OXIDATION OF PROPENE TO ACROLEIN Russian patent published in 2024 - IPC B01J23/887 B01J37/04 B01J37/08 C07C45/35 

FIELD: chemistry.

SUBSTANCE: invention relates to methods of producing multiphase mixed oxide catalysts. Disclosed is a method of producing a multiphase mixed oxide catalyst containing at least one active phase based on bismuth molybdate, and one iron molybdate-based cocatalyst, and at least one of two elements, cobalt or nickel, said method comprising steps of producing a mixture of precursors of said mixed oxides in a solvent, performing, with the participation of said precursors, a hydrothermal reaction using microwave radiation in two steps, between which the pH of the reaction mixture obtained after the first hydrothermal reaction using microwave radiation, brought to 8–8.5, and separation of mixed oxides to obtain a catalyst. Also disclosed is a version of the method of obtaining, a catalyst obtained using the disclosed method and use thereof.

EFFECT: disclosed method enables to reduce the time required for producing the catalyst and increases reactivity of the obtained catalyst.

19 cl, 7 tbl, 8 ex