Title: Evaluation of [C<sub>3</sub>mim][NTf<sub>2</sub>] as Solvent for the Liquid-Liquid Extraction of Benzene from Mixtures of Benzene and Hexane
Abstract: Abstract In this paper, the liquid-liquid extraction of benzene from hexane with 1-propyl-3-methylimidazolium bis{trifluoromethylsulfonyl}imide, [C3mim][NTf2], as solvent was studied. The liquid-liquid equilibrium (LLE) data of the ternary system [hexane + benzene + ionic liquid] were measured at 298.15 K and atmospheric pressure. From the experimental composition data, the selectivity and the solute distribution ratio were calculated. The reliability of the experimental LLE data was ascertained using the Othmer-Tobias equation, and the NRTL thermodynamic model was used to correlate the experimental data. Moreover, a comparison with literature data for the ternary systems [hexane + benzene + ionic liquid] was also carried out. Keywords: [C3mim][NTf2]benzenehexaneliquid-liquid equilibria ACKNOWLEDGEMENTS The authors are grateful to Xunta de Galicia (Spain) for the financial support of this work via the project INCITE09314258PR. Irene Domínguez is also grateful to the Ministerio de Ciencia e Innovación (Spain) for awarding a FPI grant (BES-2008-003074). Notes a From ref. (14). b From ref. (15).
Publication Year: 2012
Publication Date: 2012-01-15
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 6
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