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Author(s): Noélia Calvar
Irene Domínguez
Elena Gómez
Ángeles Domínguez
Title: Separation of binary mixtures aromatic + aliphatic using ionic liquids: Influence of the structure of the ionic liquid, aromatic and aliphatic
Issue Date: 2011
Abstract: Binary mixtures of hydrocarbon + aromatic compounds are usually separated using conventionalorganic volatiles, and to avoid the use of these compounds, the ionic liquids are gaining importanceto substitute them. To study the influence of the structure of the different compoundson the separation, we have carried out the liquid-liquid equilibrium of ternary systems containingbinary mixtures of hydrocarbon + aromatic compounds and ionic liquids, namely hexane orheptane or cyclohexene + benzene + BMimMSO4, hexane or cyclohexane + benzene + BMimNTf2 and hexane+ toluene + BMimNTf2 at 298.15 K and atmospheric pressure, and the obtained experimental datahave been correlated using NRTL and UNIQUAC models. The comparison of the phase behavior of thedifferent systems studied has allowed us to analyze the influence of the anion of the ionic liquid, thechain length of the aliphatic and the lack of substituent (side chain) in the aromatic compound on thephase equilibria and on the separation ability of these ionic liquids
Subject: Ciências Tecnológicas, Ciências da engenharia e tecnologias
Technological sciences, Engineering and technology
Scientific areas: Ciências da engenharia e tecnologias
Engineering and technology
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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