METHOD OF PRODUCING NON-PLATINUM CATALYST FOR AMMONIA OXIDATION Russian patent published in 2024 - IPC B01J37/04 B01J37/08 B01J21/06 B01J21/08 B01J21/12 B01J21/14 B01J23/78 B01J23/83 B01J23/847 B01J23/889 B01J27/16 B01J35/57 

FIELD: chemistry.

SUBSTANCE: invention relates to catalytic chemistry, particularly to technology of a block non-platinum catalyst for oxidation of ammonia to nitrogen oxide in production of nitric acid. Disclosed is a method of producing a non-platinum catalyst, in which iron (III) oxide is mixed with aluminium and magnesium nitrates or aluminium nitrate and ammonium vanadate, and the resulting mixture is ground to obtain a catalyst mass. Obtained mass is calcined at 400 °C and molten petrolatum, oleic acid, ethyl alcohol are added thereto in weight ratio 1:0.20–0.3:0.02–0.04:0.12–0.15. Then the obtained mixture is formed into honeycomb structures and heat treated at temperature of 850–1,000 °C. Before moulding, a spent oil fraction cracking catalyst is added to the catalyst mass at a weight ratio of catalyst mass : spent oil fraction cracking catalyst equal to 1:0.15–0.30.

EFFECT: high output of nitrogen oxide under conditions of high pressure, as well as simple method of making the catalyst.

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