Abstract
Phase equilibrium calculation of electrolyte-mixed solvent systems is important in separation processes including extractive distillation. Although methods for equilibrium calculations are available in the literature, they are specific to each application and no general methods have been proposed. In the present work we extented the semiempirical method applicable to the solute properties of mixed electrolyte-mixed solvent systems to the calculation of solvent properties. In the present method excess Gibbs function was represented as the sum of Debye-Hückel term, Born term and NRTL term. Experimental data for mixed 1 : 1 strong electrolytes-mixed solvent systems showed close agreements with calculated values.
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References
Pitzer, K. S. and Kim, J.J.:J. Am. Chem. Soc.,96, 5701 (1974).
Chen, C. C. and Evans, L. B.:AIChE J.,32, 444 (1986).
Evans. L. B. and Chen, C. C:AIChE J.,32, 1655 (1986).
Cruz, J. and Renon, H.:AIChE J.,24, 817 (1978).
Kim, H. D. and Lee, C. S.:Hwahak Konghak,27, 548 (1989).
Han, G. S., Jung, W. S. and Lee, C. S.:Hwahak Konghak,27, 657 (1989).
Shim, Y. S., Kim, H. D. and Lee, C. S.:Hwahak Konghak,29(5), 630 (1991).
Shim, Y. S. and Lee, C. S.:KJChE,8(4), 227 (1991).
Prausnitz, J. M., Lichtenthaler, R. N. and De Azevedo, E. G.: “Molecular Thermodynamics of Fluid Phase Equilibria”, 2nd ed., Prentice-Hall, Englewood Cliffs, N.J. (1986).
Marcio, J. E., de Cardoso, M. and O’Connell, J. P.: Fluid Phase Equilibria,33, 315 (1987).
Sandler, S. I.: “Chemical Engineering Thermodynamics”, Wiley, New York (1989).
Conway, B. E.: “Electrochemical Data”, Greenwood Press (1969).
Tsonopouls, C:AIChE J.,20, 236 (1974).
Ananth, M. S. and Ramachandran, S.:AIChE J.,36, 3709 (1990).
Gmehling. J. and Onken, U.: “Vapor-Liquid Equilibrium Data Collection”, DECHEMA Chemistry-Data Series, vol. I, Part 1.
Robinson, R. A. and Stokes, R. H.: “Electrolyte Solutions”, 2nd, Butterworth, London (1968).
Biox, E., Guerry, R. and Tassios, D.:J. Chem. Eng. Data,24, 9 (1979).
Covinton, A. K., Lilley, T. H. and Robinson, R. H.:J. Phys. Chem.,72. 2759 (1976).
Reilly. P.J., Wood. R. H. and Robinson, R. A.:J. Phys. Chem..75, 1305 (1971).
Teruya, T., Hosako, S. and Nakano, T.:J. Chem. Eng. Japan,9, 1 (1976).
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Shim, Y.S., Lee, C.S. Vapor-liquid equilibria of solvents in mixed strong 1 : 1 electrolytes-solvent system. Korean J. Chem. Eng. 10, 156–163 (1993). https://doi.org/10.1007/BF02705138
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DOI: https://doi.org/10.1007/BF02705138