Abstract

MARTINEZ REINA, Marlon; AMADO GONZALEZ, Eliseo  and  MUNOZ MUNOZ, Yonny Mauricio. STUDY 0F LIQUID-LIQUID EQUILIBRIIM 0F BENZENE + (HEXAXE, HEPTME A\D CYCLOHEXAXE) WITH THE IOMC LIQUID 1-ETHYL-3-METHYLIMIDAZ0LIIM ETHYLSULFATE AT 308.15 K. Rev.Colomb.Quim. [online]. 2012, vol.41, n.1, pp.89-110. ISSN 0120-2804.

The equilibrium liquid-liquid (ELL) of ternary systems benzene + (hexane, heptane and cyclohexane) with the ionic liquid 1-ethyl-3-methylimidazolium ethylsulfate (EMIM-EtS0₄) at 308.15 K, selectivity (S) and the distribution coefficient (β) are calculated from experimental data. The ability of ionic liquid as solvent for separation of the aromatic from their mixtures with ali-phatic hydrocarbons is analyzed. The region of immiscibility increased in the following order: cyclohexane < hexane < heptane. The consistency of the experimental data of ELL is evaluated using the equation of Othmer-Tobias. The composition of the phases in equilibrium is correlated with the models for the activity coeffcient NRTL and UNIQUAC.

Keywords : Liquid ionic; liquid - liquid equilibrium; aromatic; aliphatic; NRTL; UNIQUAC.

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