Journal of Chemical and Engineering Data, Vol.62, No.7, 2183-2190, 2017
Extraction of Low Concentration Aqueous Solution of Methylal: Liquid-Liquid Equilibrium in Water plus Methylal plus (Cyclohexane and n-Heptane) Ternary Systems
In order to reduce the energy consumption of distillation and decomposition of methylal in water, the experimental liquid-liquid equilibria (LLE) data of water + methylal + cyclohexane and water + methylal + n-heptane systems were measured in this work at different temperatures: 303.15 and 313.15 K under atmospheric pressure. The reliability of the tie-line data obtained by this present work was determined using the Othmer-Tobias and Hand equations. Moreover, the LLE data were correlated by nonrandom two-liquid (NRTL) and universal quasi-chemical (UNIQUAC) models with good results in both systems.