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Experimental Data and Thermodynamic Modeling of Ternary Aqueous Biphasic Systems of Eo/Po Polymers-Na2So4-H2O

Experimental Data and Thermodynamic Modeling of Ternary Aqueous Biphasic Systems of Eo/Po Polymers-Na2So4-H2O, Miran Milosevic, Koen J. J. Staal, Boelo Schuur, and Andre B. De Haan. Fluid Phase Equilibria 2014, 366 , 45–56.

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Abstract

Liquid-liquid extraction using thermoresponsive polymers as solvents in aqueous two phase systems followed by induced phase separation to recover the polymers is a potential technology for water-salt separations. Here we report for seven polymers on their ternary systems containing water, sodium sulfate and the (block co)poly ether. Equilibrium data were measured at 298.15 K and 313.15 K and atmospheric pressure. Empirical equations have been used to correlate the experimental equilibria for both temperatures separately and the semi-empirical NRTL model has been applied with a temperature dependent parameter to describe the complete dataset for both temperatures together. Model predictions were in good agreement with the experimental data. (C) 2014 Elsevier B.V. All rights reserved.

BibTeX

@article{ ISI:000334089400005,
Author = {Milosevic, Miran and Staal, Koen J. J. and Schuur, Boelo and De Haan, Andre B.},
Title = {Experimental Data and Thermodynamic Modeling of Ternary Aqueous Biphasic Systems of Eo/Po Polymers-Na2So4-H2O},
Journal = {Fluid Phase Equilibria},
Year = {2014},
Volume = {366},
Pages = {45-56},
Month = {},
Abstract = {Liquid-liquid extraction using thermoresponsive polymers as solvents in aqueous two phase systems followed by induced phase separation to recover the polymers is a potential technology for water-salt separations. Here we report for seven polymers on their ternary systems containing water, sodium sulfate and the (block co)poly ether. Equilibrium data were measured at 298.15 K and 313.15 K and atmospheric pressure. Empirical equations have been used to correlate the experimental equilibria for both temperatures separately and the semi-empirical NRTL model has been applied with a temperature dependent parameter to describe the complete dataset for both temperatures together. Model predictions were in good agreement with the experimental data. (C) 2014 Elsevier B.V. All rights reserved.},
DOI = {10.1016/j.fluid.2014.01.009},
ISSN = {0378-3812},
EISSN = {1879-0224},
Unique-ID = {ISI:000334089400005},
}

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