Model to Describe the Binodal Curve on a Type 1 Ternary Phase Diagram
Publication: Journal of Environmental Engineering
Volume 136, Issue 6
Abstract
A regression curve based on a Weibull distribution model is generated to describe the binodal curve on a three component liquid-liquid ternary phase diagram. The methodology involves transforming the experimental phase partitioning data points of each mixture from the ternary phase diagram to equivalent Cartesian coordinates. The regression curve is then generated, and the regression curve becomes the Weibull-derived binodal curve by superimposing the regression curve onto the original ternary phase diagram. A total of seven regression curves for seven ternary mixtures are generated in this study. From the regression analysis, the resulting value for each mixture is very close to one, indicating that there is strong correlation between the regression curve and the transformed experimental data points. The method developed in this research allows researchers to empirically describe a binodal curve, which is useful in analyzing and predicting the various phase partitioning scenarios of a three-component liquid-liquid system.
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Published In
Journal of Environmental Engineering
Volume 136 • Issue 6 • June 2010
Pages: 650 - 656
Copyright
© 2010 ASCE.
History
Received: May 2, 2008
Accepted: Nov 10, 2009
Published online: May 14, 2010
Published in print: Jun 2010
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