Solubility Phase Diagram of the Quaternary System Li+, Mg2+//Cl-, SO42--H2O at 298.15 K: Experimental Redetermination and Model Simulation

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	Solubility Phase Diagram of the Quaternary System Li+, Mg2+//Cl-, SO42--H2O at 298.15 K: Experimental Redetermination and Model Simulation
	Li, Hongxia 1; Zeng, Dewen 1,2; Yao, Yan 1; Yin, Xia 3; Li, Dongdong1 ; Han, Haijun 1; Zhou, Hongyan 1
	2014-05-07
发表期刊	INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
卷号	53 期号:18 页码:7579-7590
摘要	Solubility isotherms for the ternary system MgCl2-MgSO4-H2O and the quaternary reciprocal system Li+, Mg2+//Cl-, SO42--H2O were determined at 298.15 K by an isothermal dissolution method. In the ternary phase diagram, there are six solubility branches corresponding to the solid phases MgSO4 center dot nH(2)O((s)) (n = 7, 6, 5, 4, 1) and MgCl2 center dot 6H(2)O((s)). In the quaternary equilibrium phase diagram, there are 16 solubility co-saturated lines corresponding to the solid phases MgSO4 center dot nH(2)O((s)) (n = 7, 6, 5, 4, 1), MgCl2 center dot 6H(2)O((s)), Li2SO4 center dot H2O(s), LiCl center dot MgCl2 center dot 7H(2)O((s)), and LiCl center dot H2O(s). This report describes for the first time that the equilibrium solid phases MgSO4 center dot H2O(s) and MgSO4 center dot 4H(2)O((s)) have been found to exist in this quaternary system. However, the phase field of MgSO4 center dot H2O(s) overlaps with the phase fields of MgSO4 center dot 4H(2)O((s)) and MgSO4 center dot 5H(2)O((s)), which indicates that MgSO4 center dot 4H(2)O((s)) and MgSO4 center dot 5H(2)O((s)) are metastable phases; MgSO4 center dot H2O(s) is a relatively more stable phase in both the ternary and quaternary systems. A Pitzer-Simonson-Clegg thermodynamic model was used to simulate the properties of the sub-binary and subternary systems and to predict the solubility phase diagram of the quaternary system. The results of the modeling are in reasonable agreement with the experimental data.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/5729
专题	青海盐湖研究所知识仓储中国科学院青海盐湖研究所
作者单位	1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Resources & Chem, Xining 810008, Peoples R China 2.Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China 3.Hunan Univ, Coll Chem & Chem Engn, Changsha 410082, Hunan, Peoples R China
推荐引用方式 GB/T 7714	Li, Hongxia,Zeng, Dewen,Yao, Yan,et al. Solubility Phase Diagram of the Quaternary System Li+, Mg2+//Cl-, SO42--H2O at 298.15 K: Experimental Redetermination and Model Simulation[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2014,53(18):7579-7590.
APA	Li, Hongxia.,Zeng, Dewen.,Yao, Yan.,Yin, Xia.,Li, Dongdong.,...&Zhou, Hongyan.(2014).Solubility Phase Diagram of the Quaternary System Li+, Mg2+//Cl-, SO42--H2O at 298.15 K: Experimental Redetermination and Model Simulation.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,53(18),7579-7590.
MLA	Li, Hongxia,et al."Solubility Phase Diagram of the Quaternary System Li+, Mg2+//Cl-, SO42--H2O at 298.15 K: Experimental Redetermination and Model Simulation".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 53.18(2014):7579-7590.