The vapor-liquid equilibrium (VLE) data for the quaternary system ethanenitrile + water + 1,2-ethanediol + 1-ethyl-3-methylimidazolium chloride ([EMIM]Cl) were measured at 102.5 kPa. Theexperimental VLE data were correlated with the nonrandom two liquid (NRTL) activity coefficient model,and the binary interaction parameters were obtained. The results show that the mixed entrainer of[EMIM]Cl and 1,2-ethanediol can eliminate the azeotropic point of ethanenitrile and water; the selectivityof [EMIM]Cl is higher than that of 1,2-ethanediol; the relative volatility of ethanenitrile to water increaseswith the increase of the mole fraction of mixed solvent (1,2-ethanediol + [EMIM]Cl) and the amount of[EMIM]Cl in mixed solvent, but there is no synergetic effect between 1,2-ethanediol and [EMIM]Cl. Themain functions of 1,2-ethanediol are to dissolve ionic liquid and to reduce the viscosity of the entrainer.
Compounds
#
Formula
Name
1
C2H3N
acetonitrile
2
H2O
water
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.