三元体系MgCl2SrCl2H2O 323 K及348 K相平衡
Phase equilibria in the ternary system MgCl2 SrCl2 H2O at 323 K and 348 K
作者：李大伟(成都理工大学材料与化学化工学院)；桑世华(成都理工大学材料与化学化工学院)；崔瑞芝(成都理工大学材料与化学化工学院)；魏翠(成都理工大学材料与化学化工学院)；王攀(成都理工大学材料与化学化工学院)
Author：LI Da-Wei(College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology)；SANG Shi-Hua(College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology)；CUI Rui-Zhi(College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology)；WEI Cui(College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology)；WANG Pan(College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology)
收稿日期：2014-06-27 年卷（期）页码：2015,52(3):638-644
期刊名称：四川大学学报: 自然科学版
Journal Name：Journal of Sichuan University (Natural Science Edition)
关键字：地下卤水; 相平衡; 溶解度; 氯化锶; 氯化镁
Key words：Underground brine; Phase equilibrium; Solubility; Strontium chloride; Magnesium chloride
基金项目：国家自然科学基金(41373062)；高等学校博士学科点专项科研基金（20125122110015）.
中文摘要
采用等温溶解平衡法研究了323 K及348 K时三元体系MgCl2 SrCl2 H2O的相平衡关系. 根据实验数据, 绘制了相应的三元体系相图, 并确定了该体系共饱点的液相组成及对应的平衡固相. 该三元体系在323 K及348 K条件下均属于简单共饱型, 无复盐及固溶体生成, 相图均由一个共饱点, 两条单变量曲线和两个结晶区构成, 平衡固相均为MgCl2?6H2O和SrCl2?2H2O. 并对该三元体系在323 K和348 K时的相平衡进行了比较和讨论.
英文摘要
Phase equilibria in the ternary system MgCl2 SrCl2 H2O at 323 K and 348 K were studied by isothermal solution saturation method. Using the experimental data, the phase diagrams of ternary system at 323 K and 348 K were obtained, respectively. The solubilities of salts and the corresponding equilibrium solid phases of the ternary system were determined. The phase diagrams of the ternary system at both 323 K and 348 K belong to a simple type, and are without complex salt and solid solution. It can be found that in all cases there are one eutectic point, two univariant curves and two regions of crystallization corresponding to MgCl2?6H2O and SrCl2?2H2O. The phase equilibria in this ternary system at 323 K and 348 K are compared and discussed.
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