KAGAKU KOGAKU RONBUNSHU, Vol.24, No.4, 638-641, 1998
Catalytic distillation to remove minute amount of ethyl acetate in aqueous ethanol solution
Pillow-type packings were prepared by wrapping ion exchange resin with stainless steel wire netting. An experimental apparatus for batch distillation was constructed, in which 60 packings were packed. Aqueous ethanol solutions containing a minute amount of ethyl acetate were chaged in the still and distilled. When all the condensed top vapor was returned to the column, the concentration of ethyl acetate in distillate decreased rapidly, and the concentration of acetic acid in the still increased gradually. On the contrary, when the aqueous ethanol solution containing a minute amount of acetic acid was distilled, ethyl acetate was produced in the column, and its concentration in distillate increased gradually. From these experimental results, the applicability of catalytic distillation for removing a minute amount of ethyl acetate in aqueous ethanol solution is discussed.