APPARATUS AND METHOD OF PRODUCING CATALYST AND METHOD OF PRODUCING UNSATURATED ACID OR UNSATURATED NITRILE Russian patent published in 2015 - IPC B01J37/00 B01J37/04 B01J37/08 C07C253/24 C07C255/06 C07C51/16 B01J23/28 

FIELD: chemistry.

SUBSTANCE: apparatus for producing a catalyst comprises a reservoir designed for preparing an aqueous mixed solution containing Mo compound, V compound and Nb compound, a dryer designed to spray-dry the aqueous mixed solution and a pipe for connecting the reservoir with the dryer such that the aqueous mixed solution can be fed from the reservoir into the dryer. In the apparatus, a heater designed to heat the aqueous mixed solution is mounted in the reservoir and/or the pipe, and a filter designed to filter the aqueous mixed solution is installed in the pipe. The apparatus and methods of producing a catalyst provide uniform supply of the prepared aqueous mixed solution into the dryer.

EFFECT: catalyst is then used in a method of producing an unsaturated acid or unsaturated nitrile.

20 cl, 6 dwg, 7 ex