Liquid–liquid equilibrium for the ternary system of isopropyl acetate + 2-propanol + glycerol at different temperatures under atmospheric pressure

The aim of this work is to analyze the possibility of separating isopropyl acetate and 2-propanol, an azeotropic system, by using glycerol. Thus, liquid–liquid equilibrium (LLE) data for the ternary system of isopropyl acetate + 2-propanol + glycerin have been determined at various temperatures T = (298.15, 308.15, 318.15) K under atmospheric pressure. The consistency of the experimental data was verified by the mass balance. The extraction capacity was evaluated throughout the distribution coefficient and selectivity parameters. Phase diagrams have been obtained at each temperature. To facilitate the manipulation of the obtained data for industrial applications, the NRTL and the UNIQUAC models have been applied to correlate the experimental data and low deviations were obtained.