Phase Equilibria in Alcohol–Ester Systems with Deep Eutectic Solvents Based on Choline Chloride at 293.15 and 313.15 K
2021
Liquid–liquid phase equilibria in ethanol–n-propyl acetate and n-propanol–ethyl acetate systems with deep eutectic solvents (DESs) at temperatures of 293.15 and 313.15 K and atmospheric pressure have been studied. DESs based on choline chloride, namely, choline chloride–glycerol and choline chloride–urea at a molar ratio of 1 : 2, have been investigated. An internal consistency check for experimental data has been performed using the Othmer–Tobias equation. Based on the data, the distribution coefficients and the values of selectivity have been calculated. The effect of an alcohol and an ester on the position of the region of phase equilibrium has been found. The nonrandom two-liquid (NRTL) model has been used to correlate experimental data on liquid–liquid equilibria.
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