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Prediction of the solid-liquid equilibrium of ternary and quaternary salt-water systems. Influence of the e-NRTL interaction parameters.
- Source :
-
Fluid Phase Equilibria . Sep2023, Vol. 572, pN.PAG-N.PAG. 1p. - Publication Year :
- 2023
-
Abstract
- • SLE is properly described with refined e-NRTL electrolyte-solvent parameters. • Systems showing multiple precipitate equilibria are more difficult to predicted. The aim of this work is to use the refined binary electrolyte-solvent interaction parameters of the e-NRTL model obtained in a previous paper (J.L. Valverde et al. Fluid Phase Equilibria (2022), 551, 113264) and to analyse the impact of considering the electrolyte-electrolyte interaction parameters different from zero on the prediction of solid-liquid equilibria in salt-water mixtures. For this purpose, experimental data were fitted to the complete e-NRTL model by non-linear regression. Ternary (two salts + water) and quaternary (three salts + water) systems were considered. Almost all the systems analyzed were precisely predicted by using the e-NRTL model with the electrolyte-water pairs regressed previously and electrolyte-electrolyte ones set to zero. Including the electrolyte-electrolyte binary parameters in a proper way can slightly improve the solid-liquid equilibria prediction for some of the selected systems. The Na 2 SO 4 +K 2 SO 4 +Li 2 SO 4 +H 2 O mixture was described poorly than the remainder ones computed due to the complexity of the system which exhibits the formation of multiple salts. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03783812
- Volume :
- 572
- Database :
- Academic Search Index
- Journal :
- Fluid Phase Equilibria
- Publication Type :
- Academic Journal
- Accession number :
- 164247010
- Full Text :
- https://doi.org/10.1016/j.fluid.2023.113832