TERNARY EXTRACTION MODELING USING THE REDLICH-KISTER EXPANSION |
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Authors: | W. Hardey Beaver Jim L. Turpin |
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Affiliation: | a Department of Chem. Engineering, University of Arkansas, Fayetteville, Arkansas |
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Abstract: | Mathematical models for liquid-liquid extraction processes are not widely available. The correlation of liquid-liquid equilibrium for such a model is often difficult. One correlation, based upon the Redlich-Kister expansion for the molar excess Gibb's free energy, has been shown to accurately represent ternary liquid-liquid equilibrium systems used in liquid-liquid extraction operations.
The use of this correlation in an extraction model was investigated and found to be suitable for a ternary liquid-liquid extraction model with only minor limitations. A successful ternary liquid-liquid extraction model was developed using this equilibrium correlation. |
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Keywords: | Redlich-Kister Extraction |
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