Ternary (liquid + liquid) equilibria of {trifluorotris(perfluoroethyl)phosphate based ionic liquids + thiophene + heptane}
- 作者：Andrzej Marciniak ; a.marciniak@ch.pw.edu.pl ; Marek Kró ; likowski
- 关键词：Ionic liquid ; Ternary (liquid ; + ; liquid) equilibria ; Thiophene ; Heptane ; Selectivity
- 刊名：Journal of Chemical Thermodynamics
- 出版年：2012
- 期刊代码：123_00219614
- 类别：ch
- 出版时间：June, 2012
- 卷：49
- 期：Complete
- 页码：154-158
- 文件大小：742 K
摘要
Ternary (liquid + liquid) equilibria for three systems containing ionic liquids {(4-(2-methoxyethyl)-4-methylmorpholinium trifluorotris(perfluoroethyl)phosphate, 1-(2-methoxyethyl)-1-methylpiperidinium trifluorotris(perfluoroethyl)phosphate, 1-(2-methoxyethyl)-1-methylpyrrolidinium trifluorotris(perfluoroethyl)phosphate) + thiophene + heptane} have been determined at T = 298.15 K. All systems showed high solubility of thiophene in the ionic liquid and low solubility of heptane. The solute distribution coefficient and the selectivity were calculated for all systems. High values of selectivity were obtained. The experimental results have been correlated using NRTL model. The influence of ionic liquid structure on phase equilibria is discussed.