Process for purifying methanol

Details Process for purifying methanol Process for purifying methanol

C - Chemistry, Metallurgy

07

C

202/87

C07C 27/28 (2006.01) B01D 3/14 (2006.01) B01D 3/34 (2006.01) C07C 29/80 (2006.01) C07C 31/04 (2006.01)

Patent

CA 1305096

Abstract of the Disclosure: A process for purifying methanol which comprises introducing crude synthetic methanol obtained by catalytic reaction of carbon oxide and hydrogen into a rectifying column either as such or after it is first introduced into a topping column and distilled with or without the addition of water to remove low-boiling components from the top of the topping column, and distilling it in the rectifying column to withdraw purified methanol from the top of the column and mainly water from the bottom of the column; wherein an auxiliary distillation column is provided side by side with the rectifying column, and the rectify- ing column and the auxiliary distillation column are operated under particular conditions.

516030

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