Measurement and correlation of liquid-liquid equilibria of two imidazolium ionic liquids with thiophene and methylcyclohexane

被引:47
作者
Alonso, Luisa [1 ]
Arce, Alberto [1 ]
Francisco, Maria [1 ]
Soto, Ana [1 ]
机构
[1] Univ Santiago de Compostela, Dept Chem Engn, E-15782 Santiago De Compostela, Spain
关键词
D O I
10.1021/je700362q
中图分类号
O414.1 [热力学];
学科分类号
摘要
Equilibrium studies on the extraction of thiophene from its mixtures with methylcyclohexane using two imidazolium ionic liquids have been carried out. LLE data were obtained for mixtures of 1-methyl-3-octylimidazolium bis-[trifluoromethylsulfonyl]imide or 1-methyl-3-octylimidazolium tetrafluoroborate with thiophene and methylcyclohexane at atmospheric pressure and 298.15 K. Tie-line compositions were correlated using the NRTL equation, but considerable deviations from experimental data were found at high concentrations of thiophene. Distribution coefficients and selectivities were evaluated.
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页码:2409 / 2412
页数:4
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