| 摘要 |
PURPOSE:To produce a highly active oxidation catalyst with a smaller number of production stages. CONSTITUTION:The grains of a catalytically active noble metal having <=50nm average diameter are scatteringly deposited at least on the surface of a carrier consisting of the fine grains of a carrier comprising the fine grains of >=1 kind of compd. selected from the oxide, sulfide, carbide and boride of metals to constitute the oxidation catalyst. The average diameter of the grains of the carrier to be used for the catalyst is controlled to 0.05-1mum. An acid or aq. soln. contg. the compds. as the carrier material and the salts of the noble metals is atomized, the mist is calcined, and an oxidation catalyst with the noble metal grains deposited at least on the surface of the grain of the multiple oxide carrier is obtained. |
