Liquid-solid metastable phase equilibria for the quaternary system (NaCl-KCl-CaCl2-H2O) at 308.15 K

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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
关键词	Metastable Phase Equilibrium Pitzer Parameters Solubility
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.
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/363002/5900
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.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
推荐引用方式 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.