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Phase equilibria in the ternary system (LiCl + Li2SO4+ H2O) at T=308.15 K and p=0.1 MPa: Experimental data and predictions using the Pitzer model
Liu, Yuanhui1; Guo, Yafei1,2; Wang, Xuekui1; Deng, Tianlong1
2015-04-15
Source PublicationFLUID PHASE EQUILIBRIA
Volume391Pages:85-89
SubtypeArticle
AbstractThe solubilities and the physicochemical properties including density, viscosity, refractive index, conductivity, and pH of the aqueous ternary system (LiCl + Li2SO4 + H2O) at T=308.15 K and p = 0.1 MPa were determined using the isothermal evaporation method, and the metastable phase diagram and the physicochemical property diagram versus composition of liquid phase solution for the system at 308.15 K were plotted. In the metastable phase diagram of the ternary system at 308.15 K, there is one invariant point, two univariant curves, and three crystallization zones corresponding to lithium sulfate monohydrate (Li2SO4 center dot H2O), lithium chloride monohydrate (LiCl center dot H2O) and (Li2SO4 center dot H2O + LiCl center dot H2O). It belongs to the hydrate type I, and neither double salts nor solid solution were found. On the basis of Pitzer ion-interaction theory of the electrolytes and the chemical equilibrium HMW model, Pitzer single-salt parameter of lithium chloride at 308.15 K was fitted, and the single-salt parameters of lithium sulfate, mixing ion-pair theta(Cl,SO4), and the Debye-Huckel limiting slope A(Phi) at 308.15 K were obtained according to the temperature-dependent equation of parameters presented in the literatures. And then, the solubilities on the ternary system (LiCl + Li2SO4+ H2O) at 308.15 K were calculated. A comparison shows that the calculated solubility agrees well with the experimental data. (C) 2015 Elsevier B.V. All rights reserved.
KeywordThermodynamic Phase Equilibrium Solubility Hmw Model Lithium Salts
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS KeywordMINERAL SOLUBILITIES ; NATURAL-WATERS ; QUATERNARY SYSTEM ; QUINARY SYSTEM ; 308.15 K ; METASTABLE EQUILIBRIA ; SOLUTION BEHAVIOR ; SALT LAKE ; PREDICTION ; 25-DEGREES-C
Indexed BySCI
Language英语
WOS Research AreaThermodynamics ; Chemistry ; Engineering
WOS SubjectThermodynamics ; Chemistry, Physical ; Engineering, Chemical
WOS IDWOS:000352250700011
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Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/5567
Collection青海盐湖研究所知识仓储
Affiliation1.Tianjin Univ Sci & Technol, Coll Marine Sci & Technol, Tianjin Key Lab Marine Resources & Chem, Tianjin 300457, Peoples R China
2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Resources & Chem, Xining 810008, Peoples R China
Recommended Citation
GB/T 7714
Liu, Yuanhui,Guo, Yafei,Wang, Xuekui,et al. Phase equilibria in the ternary system (LiCl + Li2SO4+ H2O) at T=308.15 K and p=0.1 MPa: Experimental data and predictions using the Pitzer model[J]. FLUID PHASE EQUILIBRIA,2015,391:85-89.
APA Liu, Yuanhui,Guo, Yafei,Wang, Xuekui,&Deng, Tianlong.(2015).Phase equilibria in the ternary system (LiCl + Li2SO4+ H2O) at T=308.15 K and p=0.1 MPa: Experimental data and predictions using the Pitzer model.FLUID PHASE EQUILIBRIA,391,85-89.
MLA Liu, Yuanhui,et al."Phase equilibria in the ternary system (LiCl + Li2SO4+ H2O) at T=308.15 K and p=0.1 MPa: Experimental data and predictions using the Pitzer model".FLUID PHASE EQUILIBRIA 391(2015):85-89.
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