Calculation of Density in Partial Phase Zone for Ca-Na║Cl-SO4-H2O Equilibrium System at 35°C

He Bingzhong, Tian Li'nan
(Department of Chemical Engineering, Wuhan Institute Chemical Technology, Wuhan 430073)

Abstract Based on TTG and Pitzer theory, the density in partial phase zone was calculated for Ca-Na║Cl-SO4-H2O equilibrium system at 35°C and the diagram that describes the relationship between the density and the concentration was drawn. The calculation results fit the experimental data of the reference perfectly.
Key words TTG theory, Pitzer theory, Sensity calculation

　

Ca-Na║Cl-SO4-H2O相平衡体系35°C部分相区密度的估算

何秉忠 田立楠
(武汉化工学院化学工程系 武汉 430073)

摘要 基于TTG理论和Pitzer理论，对Ca-Na║Cl-SO4-H2O四元相平衡体系35°C部分相区的密度进行了估算，并绘制了密度与溶液浓度关系图，估算结果与文献实验数据能较好吻合。
关键词 TTG理论 Pitzer理论 密度估算

何秉忠 男，37岁，硕士，讲师，现从事热力学的教学和研究工作。
2002-11-13收稿，2003-04-02修回

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