The catalytic hydrogenation of carboxylic acid ester

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A process and catalyst for the direct hydrogenation of carboxylic esters which comprises contacting and reacting one or more esters which hydrogen under predominantly liquid phase hydrogenation conditions in the presence of a catalyst comprising a copper compound, a zinc compound and at least one compound selected from the group consisting of aluminium, zirconium, magnesium, a rare earth and mixtures thereof, prepared by calcining these compounds at a temperature in the range of 200 to less than 400 DEG C.