Liquid-Liquid Equilibrium for Ternary Mixtures of Hexane + Aromatic Compounds + [EMpy][ESO4] at T ) 298.15 K

• Type: Article in International Scientific Journal
• Date: 2010

Authors

Emilio J. González (Author) FEUP; Noelia Calvar (Author) FEUP; Begoña González (Author) FEUP; Ángeles Domínguez (Author) Other

Journal

Title: Journal of Chemical & Engineering Data

Vol. 55 No. 2

Pages: 633-638

ISSN: 0021-9568

Publisher: American Chemical Society

Indexing

ISI Web of Science

Scopus

Scientific classification

FOS: Engineering and technology

CORDIS: Technological sciences

Other information

DOI: 10.1021/je900557u

Abstract (EN): Liquid-liquid equilibrium (LLE) data for the ternary systems hexane + toluene + 1-ethyl-3-methylpyridinium ethylsulfate and hexane + ethylbenzene + 1-ethyl-3-methylpyridinium ethylsulfate were measured at T ) 298.15 K and atmospheric pressure. Selectivity and solute distribution ratio, derived 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 hexane. The consistency of tie-line data was ascertained by applying the Othmer-Tobias and Hand equations. The experimental data for the ternary systems were well correlated with the nonrandom two-liquid (NRTL) equation. The results were compared to those previously published for the separation of benzene from hexane using the same ionic liquid, therefore analyzing the influence of the radical in the benzene ring.

Language: English

Type (Professor's evaluation): Scientific