Isobaric Vapour-Liquid Equilibrium of Ternary Mixtures Cyclohexane (or n -Hexane) Plus 1,3-Dioxolane Plus 2-Butanol at 40.0 and 101.3 kPa

Abstract

Isobaric vapour-liquid equilibrium (VLE) data for the mixtures cyclohexane + 2-butanol and cyclohexane + 1,3-dioxolane + 2-butanol have been obtained with a recirculating still at 40.0 and 101.3 kPa. We also have determined isobaric VLE data at 101.3 kPa for the system n -hexane + 1,3-dioxolane + 2-butanol. The experimental data for all the binary and ternary mixtures were checked for thermodynamic consistency using the method of Van Ness. Activity coefficients have been correlated with different equations (Wilson, Van Laar, Margules, NRTL and UNIQUAC) giving satisfactory results. Predictions with the group contribution methods ASOG and UNIFAC were obtained and compared with experimental data.

Keywords:

• Vle
• Ternary Mixture
• Alkane
• 1,3-dioxolane
• 2-butanol