Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

ABSTRACT

Distillation maybe an effective way to recover the isopropyl acetate and ethanol from the mother liquor left during the production of sodium thioglycolate. The vapor-liquid equilibria (VLE) data for isopropyl acetate + ethanol binary and isopropyl acetate + ethanol + water ternary systems were investigated using quasi-static ebulliometric technique at (20, 40, 60, 80, and 101.3) kPa. The Hayden-O'Connell (HOC) equation was engaged to represent the nonideality of the vapor phase. The binary NRTL-HOC and UNIQUAC-HOC model parameters for isopropyl acetate-ethanol and isopropyl acetate-water were gained from the measured data, with the help of AspenPlus. The overall average deviation of temperature between the experiment and correlation for the binary and ternary systems are 0.10 K and 0.23 K for NRTL-HOC model, respectively, and 0.10 K and 0.18 K for UNIQUAC-HOC model, respectively. The measured data, along with the parameters gained, will offer basic information for the recovery of isopropyl acetate and ethanol by distillation.