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A Simple Correlation to Fit Type I Liquid–Liquid Equilibrium Data
Journal of Chemical & Engineering Data ( IF 2.0 ) Pub Date : 2020-08-31 , DOI: 10.1021/acs.jced.0c00293
Scott Jackson 1 , Mark Bezem 1
Affiliation  

A simple correlation to fit type I liquid–liquid equilibria (LLE) data is presented. Like the Hand plot (J. Phys. Chem. 1930, 24, 1961) and the correlation by Rod (Chem. Eng. J.1976, 11, 105), it correlates the distribution coefficients for the three components as a function of a scaling parameter that is a measure of the distance along the binodal from the binary end point to the plait point. It can be used to estimate the composition of the plait point and to interpolate and extrapolate data. It is also useful for estimating distribution coefficients for additional trace components (impurities that may build up in recycle around an extraction operation) when there is limited data. This correlation provides a fit that is comparable to or better than the fit obtained using the liquid activity coefficient models.

中文翻译:

拟合I型液-液平衡数据的简单关联

一个简单的相关性适合I型液-液平衡(LLE)数据。像手情节(J.物理学。化学193024,1961)和由杆(相关化学工程J. 197611(105),它根据缩放参数关联三个分量的分布系数,该缩放参数是沿二进制方向从二进制端点到褶点的距离的度量。它可以用于估计辫点的组成以及内插和外推数据。当数据有限时,它对于估算其他跟踪分量(在提取操作周围的循环中可能积累的杂质)的分布系数也很有用。这种相关性提供的拟合度可与使用液体活度系数模型获得的拟合度相比或更高。
更新日期:2020-09-10
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