Ammonium ionic liquids in extraction of bio-butan-1-ol from water phase using activity coefficients at infinite dilution

Urszula Domańska-Żelazna , Monika Karpińska , Anna Wiśniewska , Zbigniew Dąbrowski

Abstract

The activity coefficients at infinite dilution () for 64 solutes including water in two new ammonium-based ionic liquids (ILs), the dimethyldodecylphenoxyethylammonium bis{(trifluoromethyl)sulfonyl}imide, [N1,1,12,2OPh][NTf2] and dimethyldodecylphenoxyethylammonium dicyanamide, [N1,1,12,2OPh][DCA] were determined by gas-liquid chromatography at six temperatures in range of (318.15–368.15) K and (328.15–378.15) K for [N1,1,12,2OPh][NTf2] and [N1,1,12,2OPh][DCA], respectively. The thermodynamic functions, the limiting partial molar excess Gibbs energy, enthalpy and entropy were calculated. The values of selectivity and capacity for water/butan-1-ol separation problem were calculated from and compared to literature values for ammonium-based or other selected ionic liquids for the same separation problem. On the bases of the results, the intermolecular interactions of the chosen ILs and solutes were discussed. The data presented here shows that [N1,1,12,2OPh][NTf2] reveals attractive selectivity with low capacity and [N1,1,12,2OPh][DCA] shows attractive capacity with low selectivity in the water/butan-1-ol separation.
Author Urszula Domańska-Żelazna - Instytut Chemii Przemysłowej im. prof. Ignacego Mościckiego, Thermodynamic Research Unit, School of Chemical Engineering
Urszula Domańska-Żelazna,,
-
, Monika Karpińska (FC / DPC)
Monika Karpińska,,
- Department Of Physical Chemistry
, Anna Wiśniewska
Anna Wiśniewska,,
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, Zbigniew Dąbrowski
Zbigniew Dąbrowski,,
-
Journal seriesFluid Phase Equilibria, ISSN 0378-3812, (A 30 pkt)
Issue year2019
Vol479
Pages9-16
Publication size in sheets0.5
Keywords in EnglishAmmonium ionic liquidsExperimental activity coefficients at infinite dilutionThermodynamicsSeparation
ASJC Classification1606 Physical and Theoretical Chemistry; 3100 General Physics and Astronomy; 1500 General Chemical Engineering
DOIDOI:10.1016/j.fluid.2018.09.024
URL https://www.sciencedirect.com/science/article/pii/S0378381218304047
Languageen angielski
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1-s2.0-S0378381218304047-main.pdf 690.43 KB
Score (nominal)30
ScoreMinisterial score = 30.0, 13-08-2019, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.033; WoS Impact Factor: 2017 = 2.197 (2) - 2017=2.214 (5)
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