SCI和EI收录∣中国化工学会会刊

›› 2008, Vol. 16 ›› Issue (5): 722-725.

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Surfactant Distribution in the Clouding of TX114

秦炜, 黄焱, 丁昱文, 戴猷元   

  1. State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
  • 收稿日期:2007-11-21 修回日期:2008-06-06 出版日期:2008-10-28 发布日期:2008-10-28
  • 通讯作者: QIN Wei,E-mail:qinwei@tsinghua.edu.cn
  • 基金资助:
    the National Natural Science Foundation of China (20676069)

Surfactant Distribution in the Clouding of TX114

QIN Wei, HUANG Yan, DING Yuwen, DAI Youyuan   

  1. State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
  • Received:2007-11-21 Revised:2008-06-06 Online:2008-10-28 Published:2008-10-28
  • Supported by:
    the National Natural Science Foundation of China (20676069)

摘要: Distribution of TX114 between coacervate and aqueous phases in clouding of various initial TX114 concentrations was studied. Effects of temperature and salinity (Na2SO4) on the distribution of TX114 concentration were also investigated. Differing from the nonionic surfactant C12E10, the distribution of TX114 is sensitive to the temperature, and it is observed that the TX114 concentration in the aqueous phase (Caq) does not depend on the initial TX114 concentration apparently at 45℃, and the Caq decreases with an increase of Na2SO4 concentration.Low initial TX114 concentration in unclouded solutions, high Na2SO4 concentration, and temperature are suggested to control the surfactant loss in large-scale cloud point extraction applications.

关键词: TX114, cloud point, TX114 distribution, coacervate and aqueous phases

Abstract: Distribution of TX114 between coacervate and aqueous phases in clouding of various initial TX114 concentrations was studied. Effects of temperature and salinity (Na2SO4) on the distribution of TX114 concentration were also investigated. Differing from the nonionic surfactant C12E10, the distribution of TX114 is sensitive to the temperature, and it is observed that the TX114 concentration in the aqueous phase (Caq) does not depend on the initial TX114 concentration apparently at 45℃, and the Caq decreases with an increase of Na2SO4 concentration.Low initial TX114 concentration in unclouded solutions, high Na2SO4 concentration, and temperature are suggested to control the surfactant loss in large-scale cloud point extraction applications.

Key words: TX114, cloud point, TX114 distribution, coacervate and aqueous phases