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

doi:10.1016/j.cjche.2015.04.011

Chin.J.Chem.Eng. ›› 2015, Vol. 23 ›› Issue (8): 1369-1373.DOI: 10.1016/j.cjche.2015.04.011

• CHEMICAL ENGINEERING THERMODYNAMICS • Previous Articles Next Articles

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 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:2015-09-26 Published:2015-08-28
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).

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 School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, China;
2 Environmental Monitoring Central Station of Suqian City, Jiangsu Province, Suqian 223800, China

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).

Abstract

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

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

Jing Fang, Rui Zhao, HuiWang, Chunli Li, Jing Liu. Salting-out effect of ionic liquids on isobaric vapor-liquid equilibrium of acetonitrile-water system[J]. Chin.J.Chem.Eng., 2015, 23(8): 1369-1373.

Jing Fang, Rui Zhao, HuiWang, Chunli Li, Jing Liu. Salting-out effect of ionic liquids on isobaric vapor-liquid equilibrium of acetonitrile-water system[J]. Chinese Journal of Chemical Engineering, 2015, 23(8): 1369-1373.

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

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

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