| 摘要 |
1318900 Purification of 2 Ethylhexanol BADISCHE ANILIN- & SODA-FABRIK A.G. 16 Oct 1970 [17 Oct 1969] 49228/70 Heading C2C 2-Ethylhexanol (prepared by hydrogenation, of 2-ethylhex-2-en-1-al) is purified by continuous distillation in three columns connected in cascade fashion, impurities boiling below 2-ethylhexanol being removed from the top of the first column, pure ethylhexanol being taken from the top of the second column at which the pressure is maintained at 200-800 mm Hg and 2-ethylhexanol remaining in the high boiling impurities being removed from the top of the third column at which the pressure is maintained at 70-300 mm Hg, the concentration of 2-ethylhexanol in the bottoms of the second column being maintained at at least 50%. |
