| abstract |
A mixed oxide catalyst is described, in particular for the selective oxidation of CO in hydrogen-rich gas mixtures, or in oxygen-containing gas mixtures in the presence of water and carbon dioxide, containing about 15 to 30 at.% Cu, about 55 to 77 at.% Mn and about 7.5 to 10 at.% Ce. Processes for producing the catalyst by mixed precipitation with an alkaline precipitant or by impregnation of MnO 2 or a carrier are also described. The selective oxidation of CO in hydrogen-rich gas mixtures or in automotive exhaust gases and industrial exhaust gases is also described. |