Measurement and modeling of vapor–liquid equilibria at high salt concentrations

Isobaric vapor–liquid equilibrium data are reported for binary and ternary aqueous mixtures containing LiCl and ZnCl2 at total salt concentrations between 10 and 50 wt.%. The measurements were carried out at 5.3, 9.3, 20, 40, and 101.3 kPa in a computer-controlled glass apparatus. Particular care was taken to ensure proper equilibration of the high-density, high-viscosity salt mixtures. The equilibrium data spanning temperatures between 303 and 423 K were successfully correlated using the electrolyte model by Wang and Anderko [Fluid Phase Equilibr. 203 (2002) 141–176].