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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Thermodynamic Behavior of the Phase Equilibrium of Ethyl Acetate plus Ethanol plus Water Systems at Atmospheric Pressure: Experiment and Modeling

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Author(s):
Robles, Pedro A. [1] ; Lourenco, I, Natalia ; Igarashi, Edson M. S. [2] ; Sousa, Marivone N. [2] ; Arce, Pedro F. [2]
Total Authors: 5
Affiliation:
[1] Pontificia Univ Catolica Valparaiso, Escuela Ingn Quim, Valparaiso 2340000 - Chile
[2] Lourenco, Natalia, I, Univ Sao Paulo, Engn Sch Lorena, BR-12602810 Lorena, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: JOURNAL OF CHEMICAL AND ENGINEERING DATA; v. 65, n. 4, p. 1402-1410, APR 2020.
Web of Science Citations: 0
Abstract

The fluid phase behavior of liquid-liquid equilibrium (LLE) is an important piece of the separation processes in chemical engineering, mainly for solvent extraction or liquid-liquid extraction. In this work, experimental studies were carried out in the LLE of a ternary system composed of water, ethanol, and ethyl acetate at four different temperatures at atmospheric pressure. A two-step procedure was done for each temperature in the experimental stage. First, the construction of the binodal curve of the ternary system, and second, the determination of the tie-lines (LLE). For the tie-lines, because the configuration of the binodal curve and the refractive index of the liquid phases at equilibrium were known, their compositions were determined. The LLE experimental data were evaluated through the method developed by Marcilla and collaborators. The gamma-gamma approach was used for the modeling, by using the analytical solutions of groups (ASOG), the nonrandom two-liquids (NRTL), and the universal quasichemical (UNIQUAC) models. Results of the thermodynamic modeling were compared with the experimental values, and the deviations of the compositions of the lighter phase were very low for the thermodynamic models used. (AU)

FAPESP's process: 15/05155-8 - Modeling of the thermophysical properties of pure fluids (ionic liquids and components present in natural products) and thermodynamic behaviour of the phase equilibrium of mixtures
Grantee:Pedro Felipe Arce Castillo
Support Opportunities: Regular Research Grants
FAPESP's process: 18/03739-0 - EXPERIMENTAL MEASUREMENT, CORRELATION AND PREDICTION OF THE FLUID PHASE BEHAVIOR OF SYSTEMS CONTAINING IONIC LIQUIDS (IMIDAZOLIUM) AND SUPERCRITICAL CO2.
Grantee:Pedro Felipe Arce Castillo
Support Opportunities: Regular Research Grants