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Solid-liquid metastable equilibria in the quaternary system Li2SO4 + MgSO4 + Na2SO4 + H2O at T=263.15 K
Li, Zhiyang3; Deng, Tianlong1; Liao, Mengxia2
2010-06-15
Source PublicationFLUID PHASE EQUILIBRIA
Volume293Issue:1Pages:42-46
SubtypeArticle
AbstractSolubility in the liquid-solid metastable system Li2SO4 + MgSO4 + Na2SO4 + H2O at T=263.15 K was studied using the isothermal evaporation method. Based on experimental data, dry-salt phase and water-phase diagrams of the system were plotted. The dry-salt phase diagram of the system includes one three-salt co-saturation point, three metastable solubility isotherm curves, and three crystallization regions corresponding to lithium sulphate monohydrate (Li2SO4 center dot H2O), epsomite (MgSO4 center dot 7H(2)O), and mirabilite (Na2SO4 center dot 10H(2)O). Neither a solid solution nor double salts were found. Based on the extended Harvie-Weare (HW) model and its temperature-dependent equation, the values of the Pitzer parameters beta((0)), beta((1)), beta((2)), and C-Phi for Li2SO4, MgSO4, and Na2SO4, the mixed ion-interaction parameters theta(Li,Na), theta(Li,Mg),. theta(Na,Mg), Psi(Li,Na,SO4), Psi(Li,Mg,SO4), and Psi(Na,Mg,SO4), and the Debye-Huckel parameter A(Phi) in the quaternary system at 263.15K were obtained. The solubility of the quaternary system Li2SO4 + MgSO4 + Na2SO4 + H2O at T=263.15 K was also calculated. A comparison between the calculated and experimental results shows that the predicted solubility agrees well with experimental data. (C) 2010 Elsevier B.V. All rights reserved.
KeywordMetastable Phase Equilibrium Phase Diagram Solubility Pitzer Modeling
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS KeywordMINERAL SOLUBILITIES ; NATURAL-WATERS ; NA-K-MG-CA-CL-SO4-H2O SYSTEM ; 25-DEGREES-C ; PREDICTION ; MODEL
Indexed BySCI
Language英语
WOS Research AreaThermodynamics ; Chemistry ; Engineering
WOS SubjectThermodynamics ; Chemistry, Physical ; Engineering, Chemical
WOS IDWOS:000278199300005
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Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/5931
Collection青海盐湖研究所知识仓储
Affiliation1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Qinghsi, Peoples R China
2.Chengdu Univ Technol, Coll Mat Chem & Chem Engn, Chengdu 610059, Peoples R China
3.Chongqing Univ, Chongqing 400045, Peoples R China
Recommended Citation
GB/T 7714
Li, Zhiyang,Deng, Tianlong,Liao, Mengxia. Solid-liquid metastable equilibria in the quaternary system Li2SO4 + MgSO4 + Na2SO4 + H2O at T=263.15 K[J]. FLUID PHASE EQUILIBRIA,2010,293(1):42-46.
APA Li, Zhiyang,Deng, Tianlong,&Liao, Mengxia.(2010).Solid-liquid metastable equilibria in the quaternary system Li2SO4 + MgSO4 + Na2SO4 + H2O at T=263.15 K.FLUID PHASE EQUILIBRIA,293(1),42-46.
MLA Li, Zhiyang,et al."Solid-liquid metastable equilibria in the quaternary system Li2SO4 + MgSO4 + Na2SO4 + H2O at T=263.15 K".FLUID PHASE EQUILIBRIA 293.1(2010):42-46.
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