Abstract

Experimental determinations and theoretical calculations of the phase equilibria for the n-hexane + ethanol + dibutyl ether ternary mixture and the n-hexane + dibutyl ether and ethanol + dibutyl ether binary mixtures are reported in this work at 94 kPa and over the isothermal range 332.3 K to 401.8 K. At the explored conditions, the phase equilibria are characterized by vapor liquid equilibria (VLE) which are measured in an all-glass dynamic VLE cell, whereas the theoretical modeling of the experimental VLE data are carried out by applying classical activity coefficients models (Wilson, and NRTL models), UNIQUAC method, and the molecular based statistical associating fluid theory with variable range using a Mie potential (SAFT-VR Mie) equation of state (EoS).