Separation of Isopropyl Alcohol-Water Azeotropic Mixture by Salting Out

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Other Title
  • 塩析によるイソプロパノール-水共沸混合物の分離

Abstract

Salting out was tried to separate isopropyl alcohol-water azeotropic mixture and the 25 salts were examined to observe the salt effect on this system. Effective salts are K2CO3, K4P2O7, K2S2O3, K3PO4, which are more soluble in water than the other salts Among the four salts, the most effective one is K2CO3 on the standpoint of industrial interest Therefore, as basic data for the application of K2CO3 to the industrial salting out process, liquid liquid equilibrium for the isopropyl alcohol-water-K2CO3 system at 30°C was measured.<BR>As a result, isopropyl alcohol-water mixture the concentration of which is less than 87.4wt% has been concentrated to 95.6wt% isopropyl alcohol.

Journal

  • Chemical engineering

    Chemical engineering 35 (9), 1017-1021,a1, 1971

    The Society of Chemical Engineers, Japan

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