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Metastable Phase Equilibria for the Ternary Aqueous System of Lithium Sulfate and Potassium Sulfate at T=308.15 K: Experimental Data and Prediction Using Pitzer Model
Li, Long1; Bu, Baihui1; Zhang, Nan1; Guo, Yafei1,2; Deng, Tianlong1
2016-09-01
发表期刊RUSSIAN JOURNAL OF INORGANIC CHEMISTRY
卷号61期号:9页码:1169-1174
文章类型Article
摘要The metastable solubilities and the physicochemical properties including density, refractive index, pH and conductivity in the ternary system (Li2SO4 + K2SO4 + H2O) at T = 308.15 K were determined experimentally using the isothermal evaporation method, and the metastable phase diagram and the physicochemical properties versus composition diagram were plotted. In the metastable phase diagram, there are two invariant points, three univariant curves and three crystallization regions corresponding to lithium sulfate monohydrate (Li2SO4 center dot H2O), double salt (K2SO4 center dot Li2SO4) and arcanite (K2SO4). It was found that the double salt of K2SO4 center dot Li2SO4 belongs to the incongruent double salt, and the hydrate of Li2SO4 center dot H2O belongs to hydrate type I. On the basis of Pitzer model of the electrolyte solution theory, the mixing-ion parameter of theta(Li,K), Psi(Li,K,SO4) and the metastable equilibrium constants of the solid phases K2SO4, Li2SO4 center dot K2SO4 and Li2SO4 center dot H2O at 308.15 K were obtained for the first time. The calculated metastable solubility data for this ternary system at 308.15 K agree well with the experimental values, and this result indicates that the mixing-ion parameters and the metastable equilibrium constants obtained in this work are reliable.
关键词Solubility Solid-liquid Phase Diagram Isothermal Evaporation Pitzer Model
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]MINERAL SOLUBILITIES ; NATURAL-WATERS ; THERMODYNAMICS ; 25-DEGREES-C
收录类别SCI
语种英语
WOS研究方向Chemistry
WOS类目Chemistry, Inorganic & Nuclear
WOS记录号WOS:000385168700016
引用统计
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/6361
专题青海盐湖研究所知识仓储
作者单位1.Tianjin Univ Sci & Technol, Coll Chem Engn & Mat Sci, Tianjin Key Lab Marine Resources & Chem, Tianjin 300457, Peoples R China
2.Chinese Acad Sci, Key Lab Salt Lake Resources & Chem, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China
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Li, Long,Bu, Baihui,Zhang, Nan,et al. Metastable Phase Equilibria for the Ternary Aqueous System of Lithium Sulfate and Potassium Sulfate at T=308.15 K: Experimental Data and Prediction Using Pitzer Model[J]. RUSSIAN JOURNAL OF INORGANIC CHEMISTRY,2016,61(9):1169-1174.
APA Li, Long,Bu, Baihui,Zhang, Nan,Guo, Yafei,&Deng, Tianlong.(2016).Metastable Phase Equilibria for the Ternary Aqueous System of Lithium Sulfate and Potassium Sulfate at T=308.15 K: Experimental Data and Prediction Using Pitzer Model.RUSSIAN JOURNAL OF INORGANIC CHEMISTRY,61(9),1169-1174.
MLA Li, Long,et al."Metastable Phase Equilibria for the Ternary Aqueous System of Lithium Sulfate and Potassium Sulfate at T=308.15 K: Experimental Data and Prediction Using Pitzer Model".RUSSIAN JOURNAL OF INORGANIC CHEMISTRY 61.9(2016):1169-1174.
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