Ternary liquid–liquid equilibria of trifluorotris(perfluoroethyl)phosphate based ionic liquids + methanol + heptane

Michał Wlazło , Andrzej Marciniak

Abstract

Ionic liquids: (4-(2-methoxyethyl)-4-methylmorpholinium trifluorotris(perfluoroethyl)phosphate, 1-(2-methoxyethyl)-1-methylpiperidinium trifluorotris(perfluoroethyl)phosphate, 1-(2-methoxyethyl)-1-methylpyrrolidinium) trifluorotris(perfluoroethyl)phosphate have been investigated in separation of heptane/methanol mixture which form an azeotrope. Three systems of ternary liquid–liquid equilibria containing mentioned ionic liquids + methanol + heptane have been determined at T = 298.15 K. All systems show total miscibility of methanol in the ionic liquid and low solubility of heptane. The experimental results have been correlated using NRTL model. The selectivity and the solute distribution ratio have been calculated for all systems. High selectivities and solute distribution ratios have been obtained for all systems. Experimental tie-lines as well as selectivities and solute distribution ratios are compared with other ionic liquids. The influence of cation and anion structure on phase equilibria is discussed.
Author Michał Wlazło (FC / DPC)
Michał Wlazło,,
- Department Of Physical Chemistry
, Andrzej Marciniak (FC / DPC)
Andrzej Marciniak,,
- Department Of Physical Chemistry
Journal seriesFluid Phase Equilibria, ISSN 0378-3812
Issue year2013
Vol338
Pages253-256
Publication size in sheets0.5
Keywords in EnglishIonic liquid, Ternary liquid–liquid equilibria, Methanol, Heptane, Selectivity
ASJC Classification1606 Physical and Theoretical Chemistry; 3100 General Physics and Astronomy; 1500 General Chemical Engineering
DOIDOI:10.1016/j.fluid.2012.11.014
URL http://www.sciencedirect.com/science/article/pii/S0378381212005389
Languageen angielski
File
1-s2.0-S0378381212005389-main (1).pdf 368.26 KB
Score (nominal)30
Score sourcejournalList
ScoreMinisterial score = 30.0, 01-02-2020, ArticleFromJournal
Ministerial score (2013-2016) = 30.0, 01-02-2020, ArticleFromJournal
Publication indicators WoS Citations = 20; Scopus Citations = 21; Scopus SNIP (Source Normalised Impact per Paper): 2013 = 1.277; WoS Impact Factor: 2013 = 2.241 (2) - 2013=2.244 (5)
Citation count*23 (2020-09-10)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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