Vapor−Liquid Equilibria for the Ternary System Ethanol + Water + 1-Butyl-3-methylimidazolium Chloride and the Corresponding Binary Systems at 101.3 kPa

Abstract

In this work, experimental data of isobaric vapor−liquid equilibria for the ternary system ethanol + water + 1-butyl-3-methylimidazolium chloride ([C 4 mim][Cl]) and for the corresponding binary systems containing the ionic liquid (ethanol + [C 4 mim][Cl] and water + [C 4 mim][Cl]) were measured at 101.3 kPa. Vapor−liquid equilibria experimental data of binary and ternary systems were correlated by the NRTL equation. NRTL parameters have been used to predict the evolution of the ethanol−water azeotrope composition with different amounts of ionic liquid.