固体溶质在含夹带剂超临界流体中的溶解度(Ⅰ)——化学缔合模型

STUDY ON SOLUBILITY OF SOLID SOLUTES IN A SUPERCRITICAL FLUID WITH ENTRAINERS(Ⅰ) CHEMICAL ASSOCIATION MODEL

推导和建立了计算固体溶质在含夹带剂超临界流体中溶解度的化学缔合模型。利用文献数据和本文实验数据对该模型的适应性进行了考察,并与文献自身模型的计算精度进行比较,取得了令人满意的结果。

Based on the theory of chemical association equilibria, a general model for calculating solubilities of solid solutes in a supercritical fluid (SCF) with entrainers was derived asThis model could be modified and simplified into the following two semi - empirical correlationsModel 1:(No entrainer)(With entrainer)Model 2:where E is an enhancement factor of solubilities. The two models for predicting solubilities of solid solutes in a SCF with entrainers correlate the experimental data from literature and this work satisfactorily.