Ternary liquid-liquid equilibria for mixtures of an aromatic + an aliphatic hydrocarbon + 4-methyl-N-butylpyridinium tetrafluoroborate

G.W. Meindersma, J.G. Podt, A.B. Haan, de

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    Abstract

    This research focused on a study of the ionic liquid 4-methyl-N-butylpyridinium tetrafluoroborate ([mebupy]BF4) as a solvent in liquid-liquid extraction. Liquid-liquid equilibrium data were obtained for mixtures of 4-methyl-N-butylpyridinium tetrafluoroborate + (benzene or ethylbenzene or m-xylene) + (N-hexane or N-octane) at T = (313.2 and 348.2) K and T = (313.2 and 333.2) K for the ternary mixture with benzene and p = 0.1 MPa. The experimental data for the binary and ternary systems were well-correlated with the NRTL model. The aromatic/aliphatic selectivity values were comparable to those of toluene + N-heptane. The ionic liquid [mebupy]BF4 is therefore a suitable solvent for an industrial extraction process for the separation of aromatic and aliphatic hydrocarbons.
    Original languageEnglish
    Pages (from-to)1814-1819
    JournalJournal of Chemical and Engineering Data
    Volume51
    Issue number5
    DOIs
    Publication statusPublished - 2006

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