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Received December 24, 2004
Accepted February 15, 2005
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Liquid-Liquid Equilibrium for the Quaternary System of o-Xylene(1)+Water(2)+Propionic Acid(3)+1-Butanol(4) at 298.15 K and Atmospheric Pressure
Department of Chemical Engineering, Dong-A University, Hadan2-dong, Saha-gu, Busan 604-714, Korea
kjk5195@hotmail.com
Korean Journal of Chemical Engineering, May 2005, 22(3), 483-488(6), 10.1007/BF02719431
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Abstract
The liquid-liquid equilibrium for the quaternary system of o-xylene(1)+water(2)+propionic acid(3)+1-butanol(4) was measured at 298.15 K and atmospheric pressure. Binodal curves, tie-lines, a distribution curve, and a selectivity curve for the quaternary system have been determined in order to investigate the effect of binary solvents, oxylene and 1-butanol, on extracting propionic acid from aqueous solution. In addition, these experimental tie line data were also compared with the values predicted by the UNIFAC model. In this study, the UNIFAC model was capable of predicting the compositions of this quaternary system within an average RMSD of 1.13 mol%.
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Dramur U,Tatli B, J. Chem. Eng. Data, 38, 23 (1993)
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Fahim MA, Almuhtaseb SA, Alnashef IM, J. Chem. Eng. Data, 42(1), 183 (1997)
Fredenslund A, Vapor-Liquid Equilibria using UNIFAC, Elsevier, Amsterdam (1977)
Gupte PA, Danner RP, Ind. Eng. Chem. Res., 26, 2036 (1987)
Hartl J, Marr R, Sep. Sci. Technol., 28, 805 (1993)
Kirk RE, Othmer DF, Encyclopedia of Chemical Technology, Interscience Encyclopedia, Inc,. New York (1947)
Larsen BL, Rasmussen P, Fredenslund A, Ind. Eng. Chem. Res., 26, 2274 (1987)
Magnussen T, Rasmussen P, Fredenslund A, Ind. Eng. Process Des. Dev., 20, 331 (1981)
Othmer DF, White RE, Trueger E, Ind. Eng. Chem., 33, 1240 (1941)
Prausnitz JM, Andersno TF, Grens EA, Eckert CA, Hsieh R, O'Connell JP, Computer Calculations for Multicomponent Vapor-Liquid and Liquid-Liquid Equilibria, Prentice Hall: Englewood Cliffs. NJ, 145 (1980)
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