【摘要】 本文解决了甲酸-乙酸-水-乙酸甲酯四元体系的分析方法,采用改进的Rose釜测定了这组体系在760mmHg下的互溶部分的汽液平衡数据。在二元缔合模型的基础上建立了一个含两个缔合组分的四元体系的热力学模型,分别用UNIQUAC方程[配位数Z=10及Z=Z(T)]、多参数Wilson方程、NRTL方程和Wilson方程从对应的六个二元体系汽液平衡数据关联所得的模型参数推算了四元体系的汽液平衡数据及对应的三元体系的汽液平衡数据,实验数据与推算结果的符合程度是令人满意的,尤其是Z=Z(T)的UNIQUAC方程的推算结果最好。更多还原

【Abstract】 A quantitative analytical method of formic acid-acetic acid-water-methylacetate quaternary system is developed. The VLE data of the system in the miscible region are determined by modified Rose equilibrium still under the pressure of 760mmHg On the basis of dimers containing in the vapor phase.a thermodynamic model of quaternary system containing two associated components are established.The VLE data of the system are predicted by UNIQUAC equation (with Z=10 and Z=Z(T)), Wilson equation, multiparameter Wilsonequation, and NRTL equation respectively by which only six pairs of corresponding binary parameters are used. The comparisons between predicted and experimental data Shaow a good agreement and especially the UNIQUAC equation withZ= (T) is the best one.更多还原