Catalyst for the purification of exhaust gases of internal combustion engines

Abstract From the Canadian patent

The present invention relates to a catalyst of active aluminium oxides with admixture of CeO2 ZrO2 and Fe2O3 and/or, NiO as support and coated thereon, an active phase of platinum palladium and/or rhodium and a base metal. Said catalyst can be obtained by impregnating the support containing the admixtures with solutions of salts of the metals for the active phase the, base metal of the active phase being cerium by drying and heat-, ing to temperatures of 250 to 650°C. The catalyst can be used for the oxidation and/or reduction of exhaust gases of internal combustion engines.