CATALYSTS OF OXIDATION FOR DIESEL ENGINES BASED ON BASE METALS AND MODIFIED WITH BASE METALS Russian patent published in 2014 - IPC B01J23/00 B01J23/10 B01J23/54 B01J21/04 B01J37/00 B01D53/94 C01F17/00 

FIELD: chemistry.

SUBSTANCE: inventions can be used in field of environment protection. Method of catalyst obtaining includes introduction of base metal in form of ammonium hydroxide or ammonia complex, or in form of organic amine complex, or in form of hydroxide compound into active in redox reactions cubic fluorite CeZrO_x material under basic conditions. Catalyst of oxidation includes primary catalytic active metal from group of noble metals, applied on carrier, as well as secondary catalytic active component, which is obtained by ionic exchange between surface of cubic fluorite CeZrO_x material and base metal solution and optionally zeolite. Obtained catalysts are used in catalytic device, placing one of them on substrate, around which case is located. Obtained catalysts are also used in method of processing of exhaust gases, passing exhaust gases above them.

EFFECT: inventions make it possible to obtain catalysts for Diesel engines, possessing resistance to hydrothermal treatment and to action of poisons under conditions of system of emission of exhaust gases of Diesel engine, as well as to achieve high degree of conversion of pollutants at lower temperatures.

26 cl, 20 dwg, 4 ex