METHOD OF PRODUCING CATALYST FOR DIESEL SOOT AFTER-BURNING Russian patent published in 2012 - IPC B01J37/25 B01J37/03 B01D53/94 B01J23/885 B01J21/06 

FIELD: chemistry.

SUBSTANCE: invention relates to methods of producing catalysts for cleaning diesel engine emissions. Described is a method of producing a catalyst for diesel soot after-burning, involving mixing a copper extract in n-caprylic acid and a molybdenum extract in isoamyl alcohol in a ratio which ensures content of metals in the obtained mixture which corresponds to the composition CuMoO₄, subsequent removal of the solvent from the obtained mixture and pyrolysis thereof on air, wherein the obtained mixture of extracts is brought to total concentration of metals of 1.5-2.0 wt % using isoamyl alcohol; the diluted mixture is deposited on a substrate made from titanium or alloy thereof, which is treated by plasma-electrolytic oxidation in an aqueous electrolyte; the solvent is removed by heating the titanium substrate with the deposited mixture of extracts to 150°C for not less than 1 hour; subsequent pyrolysis is carried out at temperature 540-550°C for not less than 1 hour.

EFFECT: simple method of producing a catalyst on a metal substrate and high efficiency thereof while simultaneously improving quality and efficiency of the obtained catalyst.

2 cl, 3 dwg, 3 ex