Abstract
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 l-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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