화학공학소재연구정보센터
Fluid Phase Equilibria, Vol.377, 38-44, 2014
Measurements and correlation at different temperatures of liquid-liquid equilibria of 2-butanol or 2-methyl-2-butanol+1,2,3-propanetriol plus water ternary systems
In this work, the experimental liquid-liquid equilibria (LLE) data of 2-methyl-2-butanol + 1,2,3-propanetriol (glycerol) + water and 2-butanol + 1,2,3-propanetriol (glycerol) + water systems at different temperatures are presented. The LLE of the systems has been measured between 283 and 323 K. The NRTL and UNIQUAC models were applied to the ternary systems. The interaction parameters obtained from both models successfully correlated the equilibrium compositions. The experimental tie lines were compared to the values predicted by the UNIFAC method. Finally, the solvent capability of both alcohols was checked in order to separate the mixture formed by glycerol and water. (C) 2014 Elsevier B.V. All rights reserved.