6533b828fe1ef96bd1287840

RESEARCH PRODUCT

Measurements and correlation at different temperatures of liquid–liquid equilibria of 2-butanol or 2-methyl-2-butanol+1,2,3-propanetriol+water ternary systems

Estela LladosaJavier De La TorreJuan B. MontónAmparo Cháfer

subject

Work (thermodynamics)UNIQUACGeneral Chemical EngineeringGeneral Physics and AstronomyThermodynamicsSolventchemistry.chemical_compoundchemistryGlycerolNon-random two-liquid modelPhysical and Theoretical ChemistryTernary operation2-ButanolUNIFAC

description

Abstract 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.

https://doi.org/10.1016/j.fluid.2014.06.015