Equilíbrio líquido-líquido para o sistema água/acetato de etila/ácido acético, PUC Minas, Belo Horizonte, 2017. Pontifícia Universidade Católica de Minas Gerais.
Y., Model to describe the binodal curve on a type 1 ternary phase diagram, Journal of Environmental Engineering 136 (6) (2010) 650-657. G., Sangashekan, M., Tie-line data for the aqueous solutions of phenol with organic solvents at T = 298.2 K, Journal of Chemical Thermodynamics 58 (2013) 142-148. Xu, D., Zhang, L., Gao, J., Pratik, D., Zhao L., Cui, Z., Liquid-liquid equilibrium for ternary systems of ethyl acetate/isopropyl acetate + 2,2,3,3-tetrafluoro-1-propanol + water at 298.15, 318.15 K, Journal of Chemical Thermodynamics 106 (2017) 218-227. Wongsawaa, T., Hronec, M., Pancharoena, U., Phatanasri, S., Solubility and tie-line data for ternary aqueous mixtures of cyclopentanol with organic solvents at T = 298.2K: experiments and NRTL model, Fluid Phase Equilibria 379 (2014) 10-18. Li, H., Wan, L., Chu, G., Tan, W., Liu, B., Qin, Y., Feng, Y., Sun, D., Fang, Y., (Liquid + liquid) extraction of phenols from aqueous solutions with cineole, Journal of Chemical Thermodynamics 107 (2017) 95-103. Pal, P., Nayak, J., Acetic acid production and purification: critical review towards process intensification, Separation & Purification Reviews 46 (1) (2017) 44-61. J., Schuur, B., Acetic acid extraction from aqueous solutions using fatty acids, Separation and Purification Technology 125 (2014) 256-263. A., Economic and environmental assessment of alternatives to the extraction of acetic acid from water, Industrial & Engineering Chemistry Research 50 (2011) 10717-10729. The results showed a good performance of ethyl ethanoate in the extraction of ethanoic acid for concentrations of solute until 16% of the feed. The distribution coefficients and separation factors calculated, made it possible an evaluation of the distribution and of the mutual solubility of the solute in the aqueous and organic phases. The determination of the composition of the extract and residue portions in the equilibrium of each mixture by of the tie-lines method allowed to examine the percentages of liquid-liquid extraction achieved. The equilibrium data were experimentally obtained by titration at room temperature (298.15 K) and atmospheric pressure (101325 Pa) using four mixtures of water, ethanoic acid, and ethyl ethanoate. The liquid-liquid extraction was modeled by the construction of a ternary phase diagram for the water/ethanoic acid/ethyl ethanoate system using the Origin software. This article describes the liquid-liquid equilibrium of the extraction process of ethanoic acid (C 2H 4O 2) in aqueous phase using ethyl ethanoate as the solvent.
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