Separation Based on Limiting Activity Coefficients of Various Solutes in 1-​Allyl-​3-​methylimidazolium Dicyanamide Ionic Liquid

Michał Wlazło , Joanna Gawkowska , Urszula Domańska-Żelazna


In the present work the limiting activity coefficients (γ13∞) for 65 solutes, including polar and nonpolar solutes as alkanes, alkenes, and alkynes as well as aromatic hydrocarbons, alcohols, water, ethers, ketones, acetonitrile, pyridine, 1-nitropropane, thiophene, and esters in the 1-allyl-3-methylimidazolium dicyanamide ([AMIM][DCA]) were determined by gas–liquid chromatography at six temperatures in the range of (308.15 to 358.15) K. The gas–liquid partition coefficients, KL at infinite dilution, and the fundamental thermodynamic functions, the limiting partial molar excess Gibbs energy, enthalpy, and entropy, were calculated. The values of selectivity and capacity for three separation problems as hexane/hex-1-ene, cyclohexane/cyclohexene, and ethylbenzene/styrene were calculated from γ13∞ and compared to literature values for imidazolium-based or dicyanamide-based ionic liquids (ILs) for the same separation problems. The data presented here shows that [AMIM][DCA] reveals one of the highest selectivities ever measured for the hexane/hex-1-ene separation.
Author Michał Wlazło ZChF
Michał Wlazło,,
- Department Of Physical Chemistry
, Joanna Gawkowska ZChF
Joanna Gawkowska,,
- Department Of Physical Chemistry
, Urszula Domańska-Żelazna ZChF
Urszula Domańska-Żelazna,,
- Department Of Physical Chemistry
Journal seriesIndustrial & Engineering Chemistry Research, ISSN 0888-5885
Issue year2016
Publication size in sheets0.5
Languageen angielski
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Score (nominal)35
ScoreMinisterial score = 35.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 35.0, 28-11-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 2.843 (2) - 2016=3.027 (5)
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