A method of preparing a catalyst for the production of vinyl acetate comprising metallic palladium, copper and gold deposited on a support

摘要

A method of preparing a catalyst for the production of vinyl acetate by reaction of ethylene oxygen and acetic acid comprising precoating a porous support with a water- insoluble form of copper, forming on the precoating support a water-insoluble palladium compound, reducing the palladium compound, and, if not previously reduced, the water-insoluble form of copper, to a catalytically effective amount of the free copper 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.