Experimental data and thermodynamic modeling of ternary aqueous biphasic systems of EO/PO polymers–Na2SO4–H2O

M. Milosevic, K.J.J. Staal, Boelo Schuur, A.B. de Haan

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)

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.
Original languageEnglish
Pages (from-to)45-56
Number of pages12
JournalFluid phase equilibria
Volume366
DOIs
Publication statusPublished - 2014

Fingerprint

UCON 50-HB-5100
Polymers
Thermodynamics
thermodynamics
polymers
binary systems (materials)
Sodium sulfate
Ternary systems
ternary systems
sodium sulfates
Phase separation
Ether
Temperature
Atmospheric pressure
temperature
Ethers
ethers
atmospheric pressure
Water
predictions

Keywords

  • METIS-305354
  • IR-94916

Cite this

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title = "Experimental data and thermodynamic modeling of ternary aqueous biphasic systems of EO/PO polymers–Na2SO4–H2O",
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.",
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author = "M. Milosevic and K.J.J. Staal and Boelo Schuur and {de Haan}, A.B.",
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Experimental data and thermodynamic modeling of ternary aqueous biphasic systems of EO/PO polymers–Na2SO4–H2O. / Milosevic, M.; Staal, K.J.J.; Schuur, Boelo; de Haan, A.B.

In: Fluid phase equilibria, Vol. 366, 2014, p. 45-56.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Experimental data and thermodynamic modeling of ternary aqueous biphasic systems of EO/PO polymers–Na2SO4–H2O

AU - Milosevic, M.

AU - Staal, K.J.J.

AU - Schuur, Boelo

AU - de Haan, A.B.

PY - 2014

Y1 - 2014

N2 - 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.

AB - 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.

KW - METIS-305354

KW - IR-94916

U2 - 10.1016/j.fluid.2014.01.009

DO - 10.1016/j.fluid.2014.01.009

M3 - Article

VL - 366

SP - 45

EP - 56

JO - Fluid phase equilibria

JF - Fluid phase equilibria

SN - 0378-3812

ER -