Experimental liquid-liquid equilibrium data were measured for benzene + cyclohexane + 1-butyl-3-methylimidazolium hexafluorophosphate ([C4mim]PF6) at atmospheric pressure and (298.2, 308.2, and 318.2) K. The selectivity of [C4mim]PF6 for benzene is in the range of (20 to 60) when the mass fraction of benzene in the cyclohexane-rich phase is less than 0.08, which increases with a decrease in benzene content. The selectivity is also dependent on the temperature. The highest selectivity is obtained at 308.2 K in this work. Considering the high selectivity for benzene and the negligible solubility in benzene + cyclohexane mixtures, [C4mim]PF6 may be used as a potential extracting solvent for the separation of benzene and cyclohexane.
Compounds
#
Formula
Name
1
C6H6
benzene
2
C6H12
cyclohexane
3
C8H15F6N2P
1-butyl-3-methylimidazolium hexafluorophosphate
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.