6533b824fe1ef96bd12813ac

RESEARCH PRODUCT

Study of the capability of 1-decyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ionic liquid as solvent in the separation of water from 1-propanol or 2-propanol at different temperatures

Josep Pasqual CerisueloAmparo CháferMa Pilar CumplidoMaría Cuenca-navarroJavier De La Torre

subject

UNIQUACMaterials science02 engineering and technology010402 general chemistry021001 nanoscience & nanotechnologyCondensed Matter Physics01 natural sciencesAtomic and Molecular Physics and Optics0104 chemical sciencesElectronic Optical and Magnetic MaterialsPropanolPartition coefficientSolventchemistry.chemical_compoundchemistryIonic liquidMaterials ChemistryNon-random two-liquid modelPhysical chemistryPhysical and Theoretical Chemistry0210 nano-technologyImideTernary operationSpectroscopy

description

Abstract After the good behavior of different 1-alkyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ionic liquids (ILs) used as solvents in the separation of 1-propanol and 2-propanol from water, liquid-liquid equilibria data was measured from a system formed by a ternary mixture of water, 1-propanol or 2-propanol and 1-decyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([dmim][Tf2N]) at 283.2, 303.2 and 323.2 K and atmospheric pressure. The non-random two-liquid (NRTL) and universal quasichemical (UNIQUAC) models were employed to obtain the thermodynamic parameters of both ternary mixtures, with good results in all cases. Finally, the capability of [dmim][Tf2N] to separate both azeotropic mixtures was studied through the distribution coefficient and selectivity and compared with the results obtained using different 1-alkyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ILs.

yearjournalcountryeditionlanguage
2020-11-01Journal of Molecular Liquids
https://doi.org/10.1016/j.molliq.2020.114083