6533b82ffe1ef96bd12964f0

RESEARCH PRODUCT

Study of separation of water + 2-propanol mixture using different ionic liquids: 1-Butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide or 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide

Juan B. MontónJavier De La TorreAmparo CháferMa Pilar Cumplido

subject

Aqueous solutionUNIQUACAtmospheric pressureInorganic chemistryExtraction (chemistry)02 engineering and technology010402 general chemistry01 natural sciencesAtomic and Molecular Physics and Optics0104 chemical sciencesPropanolchemistry.chemical_compound020401 chemical engineeringchemistryIonic liquidNon-random two-liquid modelPhysical chemistryGeneral Materials Science0204 chemical engineeringPhysical and Theoretical ChemistryImide

description

Abstract The liquid–liquid equilibria data of water (1) + 2-propanol (2) + [bmim][Tf2N] (3) and water (1) + 2-propanol (2) + [bmp][Tf2N] (3) at 283.2, 303.2 and 323.2 K and atmospheric pressure were measured with the objective of understanding the behavior of these two systems and to try to improve the extraction of 2-propanol from water from economical and environmental points of view. The thermodynamic parameters were determined using the non-random two-liquid (NRTL) and universal quasichemical (UNIQUAC) models, and excellent results were achieved in both cases (the maximum root-mean-square deviation was 0.433%). Lastly, the capability of the two ionic liquids to separate 2-propanol from the aqueous mixture was studied and compared with the capabilities of other bis(trifluoromethylsulfonyl)imide-based ionic liquids from the literature.

yearjournalcountryeditionlanguage
2018-01-01The Journal of Chemical Thermodynamics
https://doi.org/10.1016/j.jct.2017.08.020