BigPatents India

A catalyst for the production of vinyl acetate by reaction of ethylene, oxygen and acetic acid, comprising a porous support, such as herein described on the porous surfaces of which is deposited catalytically effective amounts of metallic copper, palladium and gold, said catalyst prepared by steps comprising precoating said support with a water-insoluble compound of copper, forming on the precoated support a water-insoluble palladium compound, reducing the palladium compound, and, if not previously reduced, the water-insoluble compound of copper, to a catalytically effective amount of the free metal, impregnating said copper and palladium containing support with a solution of potassium aurate, and reducing the potassium aurate to a catalytically effective amount of metallic gold. (FIG. - Nil)