Liquid−Liquid equilibria (LLE) have been measured for five ternary and two multicomponent mixtures containing cyclohexane, benzene, toluene, p -xylene, tetraethylene glycol (TTEG), and water at 60 °C and 140 °C. A new UNIFAC group was defined, and its parameters were determined from the experimental data. The calculated values are in good agreement with the experimental and literature data with sufficient accuracy for the engineering design.
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Wang et al. (1998) studied this question.