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Liquid-solid metastable phase equilibria for the quaternary system (NaCl-KCl-CaCl2-H2O) at 308.15 K
Li, D. C.1,2; Deng, T. L.1,2
2009-02-01
发表期刊JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
卷号95期号:2页码:361-367
文章类型Article
摘要The solubility and the physicochemical properties (densities, viscosities, refractive indices, conductivities and pH) in the liquid-solid metastable system (NaCl-KCl-CaCl2-H2O) at 308.15 K have been investigated using the isothermal evaporation method, and the dry-salt phase diagram, water-phase diagram, and the diagram of physicochemical properties vs. composition in the system were plotted. One three-salt cosaturated point, three metastable solubility isotherm curves, and three crystallization regions corresponding to sodium chloride, potassium chloride and calcium chloride tetrahydrate were formed, and neither solid solution nor double salts were found. On the basis of the extended Harvie-Weare (HW) model and its temperature-dependent equation, the values of the Pitzer parameters beta((0)), beta((1)), C-phi for NaCl, KCl and CaCl2, the mixing ion-interaction parameters theta(Na,K), theta(Na,Ca), theta(K,Ca), I-Na,I-K,I-Cl, I-Na,I-Ca,I-Cl, I-K,I-Ca,I-Cl, and the Debye-Huckel parameter A(phi) and the chemical potentials of the minerals in the quaternary system at 308.15 K were fitted, and the predictive solubility based on the temperature-dependent equation and the chemical potentials of the minerals agrees well with the experimental data.
关键词Metastable Phase Equilibrium Pitzer Parameters Solubility
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]MINERAL SOLUBILITIES ; NATURAL-WATERS ; PREDICTION ; MODEL ; 25-DEGREES-C ; THERMODYNAMICS ; TEMPERATURES
收录类别SCI ; ISTP
语种英语
WOS研究方向Chemistry
WOS类目Chemistry, Analytical ; Chemistry, Physical
WOS记录号WOS:000264133800005
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/5900
专题青海盐湖研究所知识仓储
作者单位1.Chengdu Univ Sci & Technol, Coll Mat Chem & Chem Engn, Chengdu 610059, Peoples R China
2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Resources & Chem, Xining 810008, Peoples R China
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GB/T 7714
Li, D. C.,Deng, T. L.. Liquid-solid metastable phase equilibria for the quaternary system (NaCl-KCl-CaCl2-H2O) at 308.15 K[J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,2009,95(2):361-367.
APA Li, D. C.,&Deng, T. L..(2009).Liquid-solid metastable phase equilibria for the quaternary system (NaCl-KCl-CaCl2-H2O) at 308.15 K.JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,95(2),361-367.
MLA Li, D. C.,et al."Liquid-solid metastable phase equilibria for the quaternary system (NaCl-KCl-CaCl2-H2O) at 308.15 K".JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY 95.2(2009):361-367.
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