Phase equilibrium investigation with ionic liquids and selectivity in separation of 2-phenylethanol from water

Urszula Domańska-Żelazna , Marek Królikowski , Maciej Zawadzki , Agnieszka Wróblewska

Abstract

This work presents some important issues and topics related to possible extraction of 2-phenylethanol (PEA) from aqueous phase “in situ” during the biosynthesis with ionic liquids (ILs). It consists of a series of experimental phase equilibrium measurements in binary and ternary systems. Three ILs as extraction media are proposed for the extraction process based on phase equilibria in ternary systems {IL (1) + PEA (2) + water (3)} at temperature T = 308.15 K and ambient pressure. The systems are composed of the following ILs: 1-hexyl-1-methylmorpholinium bis{(trifluoromethyl)sulfonyl}imide, [HMMOR][NTf2], 1-allyl-3-methylimidazolium bis{(trifluoromethyl)sulfonyl}imide, [AMIM][NTf2], and diethylmethylsulfonium bis{(trifluoromethyl)sulfonyl}imide, [S221][NTf2]. A differential scanning calorimetry (DSC) was used to determine the thermal properties of the ILs. The synthesis of new [HMMOR][NTf2] IL and its thermal and physicochemical properties as density, viscosity, surface tension were presented. The volume expansivity, as well as the surface thermodynamic functions, such as surface entropy and enthalpy have been derived from the temperature dependence of the surface tension values, as well as the critical temperature, parachor and speed of sound for all ILs were presented. The correlation of the liquidus curves in binary systems and tie-lines in ternary systems was undertaken with the NRTL equation. These results of solubility can be used to design future alternative technological processes of the extraction of PEA from fermentation broth.
Author Urszula Domańska-Żelazna ZChF
Urszula Domańska-Żelazna,,
- Department Of Physical Chemistry
, Marek Królikowski ZChF
Marek Królikowski,,
- Department Of Physical Chemistry
, Maciej Zawadzki ZChF
Maciej Zawadzki,,
- Department Of Physical Chemistry
, Agnieszka Wróblewska ZChF
Agnieszka Wróblewska,,
- Department Of Physical Chemistry
Journal seriesJournal of Chemical Thermodynamics, ISSN 0021-9614
Issue year2016
Vol102
Pages357-366
Publication size in sheets0.5
Keywords in EnglishSynthesis of [HMMOR][NTf2]; Physicochemical properties; Binary LLE phase diagrams; Ternary LLE phase diagrams; Thermodynamic description
DOIDOI:10.1016/j.jct.2016.07.025
URL http://www.sciencedirect.com/science/article/pii/S0021961416301690
project[2014/15/B/ST5/00136 POLON ] Two-phases water-organic process of production of 2-phenylethanol, including the technique of high pressure. Project leader: Domańska-Żelazna Urszula, , start date 22-07-2015, Implemented
WCh Projects financed by NSC [Projekty finansowane przez NCN]
Languageen angielski
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Score (nominal)35
ScoreMinisterial score = 30.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 35.0, 28-11-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 2.726 (2) - 2016=2.784 (5)
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