Catalytic Distillation to Remove Minute Amount of Ethyl Acetate in Aqueous Ethanol Solution.

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  • IKARI ATSUSHI
    Department of Applied Chemistry and Chemical Engineering, Kagoshima University
  • HATATE YASUO
    Department of Applied Chemistry and Chemical Engineering, Kagoshima University
  • AIKO RYOKO
    Department of Applied Chemistry and Chemical Engineering, Kagoshima University

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  • エタノール水溶液中の微量の酢酸エチルの除去に対する触媒蒸留の試行
  • エタノール スイヨウエキ チュウ ノ ビリョウ ノ サクサン エチル ノ ジョ

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Abstract

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.<BR>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.<BR>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.<BR>From these experimental results, the applicability of catalytic distillation for removing a minute amount of ethyl acetate in aqueous ethanol solution is discussed.

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