| 摘要 |
A process for effecting hydrogenolysis of a carboxylic acid ester comprises contacting a vaporous mixture containing the ester, hydrogen and a minor amount (e.g. about 0.2 moles up to about 1 mole per 100 moles of hydrogen) of carbon dioxide, with a catalyst consisting essentially of a reduced mixture of copper oxide and zinc oxide at a temperature in the range of from about 150 DEG C up to about 240 DEG C and at a pressure in the range of from about 5 bar up to about 50 bar, preferably about 15 bar to about 40 bar. The ester is preferably an alkyl acetate, or a dialkyl oxalate or maleate. |
