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 [in Japanese] Catalytic Distillation to Remove Minute Amount of Ethyl Acetate in Aqueous Ethanol Solution [in Japanese]
Access this Article
Search this Article
イオン交換樹脂をステンレス金網で包むことにより, 枕形充填物を作成した.60個の充填物を充填した, 回分蒸留用の実験装置を組み立てた.<BR>微量の酢酸エチルを含むエタノール水溶液を缶に仕込み, 蒸留した.塔頂蒸気の凝縮液を全部塔に戻すと, 留出液の酢酸エチルの濃度は急速に低下し, 缶の酢酸濃度は緩やかに上昇した.<BR>これとは逆に, 微量の酢酸を含むエタノール水溶液を蒸留すると, 塔で酢酸エチルが生成し, 留出液中のその濃度は徐々に増大した.<BR>これらの実験結果から, 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, 触媒蒸留の適用について考察した.
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.
- Chemical engineering
Chemical engineering 24(4), 638-641, 1998-07-10
The Society of Chemical Engineers, Japan