Catalytic hydrogenation of aldehydes

Details Catalytic hydrogenation of aldehydes Catalytic hydrogenation of aldehydes

C - Chemistry, Metallurgy

07

C

260/638.8

C07C 29/14 (2006.01) C07C 29/141 (2006.01) C07C 29/149 (2006.01) C07C 29/17 (2006.01) C07C 31/02 (2006.01)

Patent

CA 1250599

ABSTRACT A by-product of the catalytic hydrogenation of an aldehyde to the corresponding alcohol may be an ester; for example, n-butyl butyrate may be a by-product of catalytic hydrogenation of n-butyraldehyde to give n-butanol. In the process of the invention such by-product ester is separated from the reaction product mixture from the catalytic hydrogenation zone and is subjected to hydrogenolysis in the presence of a catalyst comprising a reduced mixture of copper oxide and zinc oxide maintained at a temperature in the range of from about 75°C to about 300°C and at a pressure in the range of from about 0.1 kg/cm2 absolute up to about 100 kg/cm2 absolute.

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