Ternary (liquid + liquid) equilibria for (water + 2-propanol + α-pinene, or β-pinene) mixtures at four temperatures

Ternary (liquid + liquid) equilibria date for the (water + 2-propanol + α-pinene, or β-pinene) systems were measured at T = (293.15, 298.15, 303.15, and 308.15) K under atmospheric pressure. The experimental results were correlated using the extended and modified UNIQUAC models. The calculated results obtained from the modified UNIQUAC model successfully represent the experimental tie-line data. The temperature influence on liquid-phase equilibria was studied.

► (Liquid + liquid) equilibria (LLE) of ternary systems composed of pinene were measured at four temperatures. ► The experimental LLE results were successfully correlated using the extended and modified UNIQUAC models. ► The temperature influence on immiscible zone of the phase diagram was discussed.