| 摘要 |
Fatty acid methyl esters are catalytically hydrogenated by reacting them together with hydrogen at pressures of 20 to 100 bar and temperatures of 160 to 270 DEG C at molar ratios of hydrogen : fatty acid methyl ester used of 10 : 1 to 500 : 1 continuously over 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 being based in each case on the oxidic catalyst composition, and, if desired, further transition metals in the form of their oxides and which, after calcining the component forming the catalyst composition have been converted together with 1 to 10 % by weight, relative to the oxidic catalyst, of at least one binder, in addition to 1 to 10% by weight of graphite, to pellets and/or granules and activated with hydrogen or a gydrogen-containing gas mixture. |
