THERMODYNAMIC MODELING OF PSEUDOTERNARY AQUEOUS TWO PHASES SYSTEMS WITH DEEP EUTECTIC SOLVENTS

Abstract

Liquid–liquid equilibrium (LLE) data used in this work were previously obtained by our group research. The quaternary systems were composed to cholinium chloride: glucose + poly(propylene)glycol (400 gmol-1) + H2O at 298.15 K. The Non-Random Two-Liquid (NRTL) model has been used to fit the DES-based aqueous two-phase systems. The interaction parameters of the models were estimated. The liquid−liquid equilibrium (LLE) experimental data were well correlated to the activity coefficients of the NRTL model, and the mean deviations were less than 1,1%.