浸透気化によるジメチルカーボネート／メタノール混合物からのジメチルカーボネートの分離

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  • Hung Phan Do
    Department of Chemical Science and Engineering, Graduate School of Engineering Science, Osaka University
  • 正脇 輝之
    大阪大学大学院基礎工学研究科 化学系専攻化学工学分野
  • 東稔 節治
    大阪大学大学院基礎工学研究科 化学系専攻化学工学分野

書誌事項

タイトル別名
  • Separation of Dimethylcarbonate from Dimethylcarbonate-Methanol Mixture by Pervaporation.
  • シントウ キカ ニヨル ジメチルカーボネート メタノール コンゴウブツ カラ

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抄録

Using poly (dimethylsiloxane) membranes, the sorption amount of dimethylcarbonate-methanol mixture into the membranes at the equilibrium was measured and pervaporation of dimethylcarbonate-methanol mixture was performed. The equilibrium concentration of the mixture in the membrane increased with increasing dimethylcarbonate concentration in the liquid phase. The membrane was permselective to dimethylcarbonate in the range of dimethylcarbonate weight fraction in the feed up to 0.8 in pervaporation. The permeation fluxes of both components increased and the separation factor remained almost constant as the operating temperature increased.<BR>The permeation fluxes through the membrane were analyzed by the solution-diffusion model considering the swelling effect of dimethylcarbonate on the membrane, and diffusion coefficients and swelling parameters were evaluated. The calculated values of separation factor based on the model were in good agreement with the experimental ones.

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