Method for distilling ethyl alcohol by adding salt or salts

Details Method for distilling ethyl alcohol by adding salt or salts Method for distilling ethyl alcohol by adding salt or salts

C - Chemistry, Metallurgy

07

C

202/86

C07C 29/80 (2006.01) B01D 3/00 (2006.01) B01D 3/34 (2006.01)

Patent

CA 1158594

ABSTRACT OF THE DISCLOSURE METHOD FOR DISTILLING ETHYL ALCOHOL BY ADDING SALT OR SALTS A mash column (2) and a rectifying column (4) are used in combination, and impurities contained in mash feed (8) is removed out of the mash column. A salt or salts are added to the top of the rectifying column (4). Alcohol supplied from the mash column (2) is subjected to rectifi- cation in the rectifying column (4), and ethyl alcohol is obtained from the top of the rectifying column (4). Bottom products from the rectifying column (4) is concentrated by an evaporator (6) and the concentrated salt or salts solution is recycled to the rectifying column (4). Vapor generated by the evaporator (6) is used as a heat source for the mash column (2).

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