Artículos de revistas
Liquid-liquid equilibrium of ternary systems 1-butyl-3-methylimidazolium hexafluorophosphate plus aromatic plus aliphatic
Registro en:
Fluid Phase Equilibria. Elsevier Science Bv, v. 265, n. 41671, n. 129, n. 138, 2008.
0378-3812
WOS:000254815800016
10.1016/j.fluid.2008.01.007
Autor
Maduro, RM
Aznar, M
Institución
Resumen
Liquid-liquid equilibrium data for the ternary systems nonane + benzene + [bmim][PF6], nonane + toluene + [bmim][PF6], nonane + m-xylene + [bmim][PF6], undecane + benzene + [bmim][PF6], undecane + toluene + [bmim][PF6], undecane + m-xylene + [bmim][PF6]) were determined at 298.15 K. Binodal curves were obtained by the cloud point method, while tie-line compositions were obtained by density and UV spectrophotometry measurements. In all cases the two-phase region is large and wide. The values of distribution coefficients and selectivities indicate that the ionic liquid [bmim][PF6] is a good solvent for the extraction of aromatic from aliphatic compounds. The consistency of the tie-line data was ascertained by applying the Othmer-Tobias correlation. The experimental LLE data were correlated through the well-known NRTL model for the activity coefficient, with estimation of new interaction energy parameters, using the Simplex minimization method and a composition-based objective function. The results, analyzed in terms of root mean square deviations between experimental and calculated compositions, were considered satisfactory. (c) 2008 Elsevier B.V. All rights reserved. 265 41671 129 138
Ítems relacionados
Mostrando ítems relacionados por Título, autor o materia.
-
On the morse potential in liquid phase and at liquid-vapor interface
Galicia Pimentel, U. F.; Osorio González, D.; López Lemus, J. -
Análise do processo de desterpenação do óleo de laranja por extração líquido-líquido utilizando solventes hidroalcoólicos através de simulação computacional = Analysis of the process of orange oil deterpenation by liquid-liquid extraction using hydroalcoholic solvents through computational simulation
Silva, Thatianne Caminha da, 1989-