Solid-liquid phase equilibrium determination and correlation of ternary systems NH4Cl+AlCl3+H2O, MgCl2+AlCl3+H2O and SrCl2+AlCl3+H2O at 298 K

被引：7

作者：

Yu, Xudong ^{[1
,2
]}

Zheng, Qiufeng ^{[1
]}

Wang, Lin ^{[1
]}

Liu, Min ^{[1
]}

Cheng, Xinglong ^{[1
,3
]}

Zeng, Ying ^{[1
,2
]}

机构：

[1] Chengdu Univ Technol, Coll Mat & Chem & Chem Engn, Chengdu 610059, Peoples R China

[2] Chengdu Univ Technol, Collaborat Innovat Ctr Panxi Strateg Mineral Reso, Chengdu 610059, Peoples R China

[3] Shanghai Elect Grp Co Ltd, Shanghai Elect Grp Cent Acad, Shanghai 200070, Peoples R China

来源：

FLUID PHASE EQUILIBRIA | 2020年 / 507卷

关键词：

Solid-liquid equilibrium; Solubility; Phase diagram; Hydrate salt; Pitzer model; THERMODYNAMICS; ELECTROLYTES; SOLUBILITIES; COEFFICIENTS; ALUMINUM; CHLORIDE; NH4+;

D O I：

10.1016/j.fluid.2019.112426

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The equilibrium data (solubility, density and refractive index) of three aqueous ternary systems NH4Cl + AlCl3+H2O, MgCl2+AlCl3+H2O, and SrCl2+AlCl3+H2O at 298 K were measured by isothermal dissolution method, and the corresponding diagrams were plotted. The phase diagram shows that these three systems are simple eutectic type, and neither double salt nor solid solution formed. Three ternary systems all have one ternary invariant point, two isothermal dissolution curves and two crystallization fields. The equilibrium thermodynamics data of three aqueous ternary systems at 298 K were correlated by using the Pitzer thermodynamic model. Result shows that the calculated values are consistent well with the experimental ones. (C) 2019 Elsevier B.V. All rights reserved.

引用

页数：9

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