| abstract |
The catalyst support is impregnated in water with a soluble palladium compound and water-soluble gold compound, the soluble palladium and gold compounds are fixed on the support and reduced to palladium and gold, impregnating and fixation in water of soluble gold compound in two steps. First, the first quantity of gold soluble compound is impregnated, fixed on the nose, then impregnated with a second quantity of gold soluble compound and fixed on the nose. The total gold content is 1.5 and 14 g / l of catalyst, the palladium content is 3 and 8 g / l of catalyst. |