环己烷(1)—异丙醇(2)—水(3)三元体系液液相平衡的研究

Studies on the Liquid—Liquid Equilibrium for a Cyclohexane (1)-2-Propanol (2)-Water (3) Ternary System

本文测定了常压,25℃和35℃下,环己烷—异丙醇—水三元体系的液液平衡数据;作出了两个温度下的分层曲线;用NRTL模型对数据进行了热力学关联,用单纯形法回归了模型的参数;并考察了参数的性能;进行了液液分层计算,将实验与关联结果比较,获得了满意的结果。

The liquid-liquid equilibrium data were measured for the Cyclohexane-2-propanol water ternary system at 25℃ and 35℃. The curves of dividing into liquid stratum were obtained at the two given temperatures, The thermodynamic correlation of the data was worked out by using NATL model, and regression of the model parameters by using simple method. And the parameter performances were examined, and the dividing of liquidliquid strata was calculated out.Comparison of the correlation with the result of the experiment gave a satisfactory account.