SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2015, Vol. 23 ›› Issue (8): 1369-1373.DOI: 10.1016/j.cjche.2015.04.011

• 化工热力学 • 上一篇    下一篇

Salting-out effect of ionic liquids on isobaric vapor-liquid equilibrium of acetonitrile-water system

Jing Fang1, Rui Zhao1, HuiWang2, Chunli Li1, Jing Liu1   

  1. 1 School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, China;
    2 Environmental Monitoring Central Station of Suqian City, Jiangsu Province, Suqian 223800, China
  • 收稿日期:2014-11-28 修回日期:2015-02-06 出版日期:2015-08-28 发布日期:2015-09-26
  • 通讯作者: Chunli Li
  • 基金资助:

    Supported by the National Natural Science Foundation of China (21306036), the Youth Scholars of Educational Commission of Hebei Province of China (Y2012040) and the Joint Specialized Research Fund for the Doctoral Program of Higher Education (20131317120014).

Salting-out effect of ionic liquids on isobaric vapor-liquid equilibrium of acetonitrile-water system

Jing Fang1, Rui Zhao1, HuiWang2, Chunli Li1, Jing Liu1   

  1. 1 School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, China;
    2 Environmental Monitoring Central Station of Suqian City, Jiangsu Province, Suqian 223800, China
  • Received:2014-11-28 Revised:2015-02-06 Online:2015-08-28 Published:2015-09-26
  • Contact: Chunli Li
  • Supported by:

    Supported by the National Natural Science Foundation of China (21306036), the Youth Scholars of Educational Commission of Hebei Province of China (Y2012040) and the Joint Specialized Research Fund for the Doctoral Program of Higher Education (20131317120014).

摘要: This paper presents the vapor-liquid equilibrium (VLE) data of acetonitrile-water system containing ionic liquids (ILs) at atmospheric pressure (101.3 kPa). Since ionic liquids dissociate into anions and cations, the VLE data for the acetonitrile + water + ILs systems are correlated by salt effect models, Furter model and improved Furter model. The overall average relative deviation of Furter model and improved Furter model is 5.43% and 4.68%, respectively. Thus the salt effect models are applicable for the correlation of IL containing systems. The salting-out effect theory can be used to explain the change of relative volatility of acetonitrile-water system.

关键词: Salting-out effect, Vapor-liquid equilibrium, Separation, Ionic liquid, Acetonitrile

Abstract: This paper presents the vapor-liquid equilibrium (VLE) data of acetonitrile-water system containing ionic liquids (ILs) at atmospheric pressure (101.3 kPa). Since ionic liquids dissociate into anions and cations, the VLE data for the acetonitrile + water + ILs systems are correlated by salt effect models, Furter model and improved Furter model. The overall average relative deviation of Furter model and improved Furter model is 5.43% and 4.68%, respectively. Thus the salt effect models are applicable for the correlation of IL containing systems. The salting-out effect theory can be used to explain the change of relative volatility of acetonitrile-water system.

Key words: Salting-out effect, Vapor-liquid equilibrium, Separation, Ionic liquid, Acetonitrile