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|Title:||Application of 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide ionic liquid for the different types of separations problem: Activity coefficients at infinite dilution measurements using gas-liquid chromatography technique||Authors:||Singh, Sangeeta
|Keywords:||Activity coefﬁcient at inﬁnite dilution;1-butyl-3-methylimidazolium;bis(triﬂuoromethylsulfonyl)imide;Gas–liquid chromatography;Separation;Selectivity||Issue Date:||2016||Publisher:||Elsevier||Source:||Singh, S. et al. 2016. Application of 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide ionic liquid for the different types of separations problem: Activity coefficients at infinite dilution measurements using gas-liquid chromatography technique. Journal Of Molecular Liquids, 220: 33-40.||Abstract:||The present work focussed on application of the environmental friendly 1-butyl-3-methylimidazolium bis(triﬂuoromethylsulfonyl) imide ([BMIM]+[Tf2N]−) ionic liquid for the separations of (alkane/aromatic), (al-kane/alk-1-ene), (cycloalkane/aromatic) and (water/alkan-1-ol) using gas-liquid chromatography (GLC) tech-nique. In this reason the activity coefﬁcients at inﬁnite dilution, γ∞13, for 31 organic solutes (alkanes, cycloalkanes, alkenes, alkynes, aromatics, alkanol and ketones) and water in ionic liquid were measured at temper-atures of (323.15, 333.15, 343.15, 353.15 and 363.15) K. Stationary phase loadings of (42.83 and 68.66) % by mass were used to ensure repeatability of measurements. Density and viscosity values were measured to conﬁrm the purity of ionic liquid. Partial molar excess enthalpies at inﬁnite dilution, ΔH1,∞, were also determined. The selectiv-ities, Sij∞, and capacities, kj∞, were determined for the above separations. The separating ability of the investigated ionic liquid was compared with previously investigated ionic liquids and industrial solvents such as sulfolane, n-methyl-2-pyrrolidine (NMP) and n-formylmorpholine (NFM).||URI:||http://hdl.handle.net/10321/2634||ISSN:||0167-7322 (print)
|Appears in Collections:||Research Publications (Applied Sciences)|
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