Process for the direct hydrogenation of glyceride oils in the pressure range from 20 to 49.9 bar

摘要

In the direct catalytic hydrogenation of glyceride oils, glyceride oils are reacted continuously together with hydrogen at pressures from 20 to 49.9 bar and at temperatures from 180 to 270@C at molar ratios of hydrogen : fatty acid radicals in the glyceride oil starting material of 10 : 1 to 500 : 1 on catalysts which contain 30 to 40% by weight of copper, 23 to 30% by weight of chromium, 1 to 10% by weight of manganese, 1 to 10% by weight of silicon and 1 to 7% by weight of barium - the % by weight in each case being based on oxidic catalyst mass - and, if desired, further transition metals in the form of their oxides, and have been converted after the calcination of the components forming the catalyst mass with 1 to 10% by weight - based on oxidic catalyst - of at least one binder in addition to 1 to 10% by weight of graphite to give lumpy and/or granular moulded articles and activated with hydrogen or a hydrogen-containing gas mixture.