(Liquid + liquid) equilibrium for ternary mixtures of {heptane + aromatic compounds + [EMpy][ESO 4]} at T = 298.15 K

• Published in: The Journal of chemical thermodynamics Vol. 43; no. 10; pp. 1530 - 1534
• Main Authors: Mirkhani, S.A., Vossoughi, M., Pazuki, G.R., Safekordi, A.A., Heydari, A., Akbari, J., Yavari, M.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01-10-2011; Elsevier
• Subjects: Aromatic compounds; Barometric pressure; Chemistry; Consistency; Exact sciences and technology; General and physical chemistry; Heptane; Heptanes; Ionic liquids; Liquid-liquid equilibria; Liquids; LLE data; Mathematical analysis; Phase equilibria; Solvents; Toluene; Ionic liquids; Aromatic compounds; Heptane; LLE data; Hydrocarbon; Benzene; Ternary mixture; Toluene; Aromatic compound; Phase equilibrium; Liquid liquid equilibrium; Ionic liquid
• ISSN: 0021-9614; 1096-3626
• DOI: 10.1016/j.jct.2011.05.009

► This paper reports the LLE data of ternary systems {heptane (1)
+
aromatic compounds (2)
+
[EMpy][ESO
4] (3)}. ► The distribution coefficient and the selectivity were obtained from the experimental data. ► The consistency of LLE data was successfully correlated with Othmer–Tobias and Hand equation.
(Liquid
+
liquid) equilibrium (LLE) data for the ternary systems (heptane
+
toluene
+
1-ethyl-3-methylpyridinium ethylsulfate) and (heptane
+
benzene
+
1-ethyl-3-methylpyridinium ethylsulfate) were measured at
T
=
298.15
K and atmospheric pressure. The selectivity and aromatic distribution coefficients, calculated from the equilibrium data, were used to determine if this ionic liquid can be used as a potential extracting solvent for the separation of aromatic compounds from heptane. The consistency of tie-line data was ascertained by applying the Othmer–Tobias and Hand equations.