METHOD OF PRODUCING CATALYST FOR ICE EXHAUST GAS CLEANING Russian patent published in 2011 - IPC B01J23/63 B01J37/02 B01D53/94 

FIELD: process engineering.

SUBSTANCE: invention relates to methods of producing catalysts intended, primarily, for ICE exhaust gas cleaning, said gases containing rare earth oxides and platinum group metals. Proposed method comprises impregnating premade inert carrier with organic solutions containing one or several compounds of rare earth elements and one or several compounds of platinum group metals, stripping of organic solvent and thermal treatment of carrier with rare earth metal oxides and noble metals deposited on its surface at 600-700°C. Organic solvents represent extracts of europium and/or cesium compounds and compounds of platinum and/or palladium mixed in ratio that allows the presence of platinum and/or palladium catalyst in solid active phase in amount of 0.5-2 wt % and europium or cesium oxide in amount of 98-99.5 wt %.

EFFECT: possibility to impregnate inert carrier in one stage that notably simplifies catalyst production and shortens process duration.

5 cl, 10 ex