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题名: Metastable Phase Equilibria of the Reciprocal Quaternary SystemContaining Lithium, Sodium, Chloride, and Sulfate Ions at 273.15 K
作者: Wang, Shiqiang ;  Deng, Tianlong
刊名: JOURNAL OF CHEMICAL AND ENGINEERING DATA
出版日期: 2010
卷号: 55, 期号:10, 页码:4211-4215
英文摘要: Experimental studies on the metastable solubilities and the physicochemical properties including density. refractive index, conductivity, and pH values in the reciprocal quaternary system containing lithium, sodium. chloride, and sulfate at 273.15 K were determined with the method or isothermal evaporation. According to the experimental results, the dry-salt phase diagram, the water phase diagram, and the physicochemical properties versus composition were plotted. In the dry-salt phase diagram, there are three invariant points, seven solubility isotherm curves, and five crystallization fields corresponding to sodium chloride, mirabilite, lithium chloride dehydrate (LiCl center dot 2H(2)O), lithium sulfate monohydrate, and a double salt (Li(2)SO4 center dot 3Na(2)SO(4)center dot 12H(2)O). There were no solid solutions formed in the reciprocal quaternary system. The crystallizing region or mirabilite is the largest, while the region of LiCl center dot 2H(2)O is the smallest with the highest concentration and a strong salting-out effect to NaCl and Li(2)SO(4)center dot H(2)O. When compared with the stable phase diagram at 273.15 K. the area of the phase region of mirabilite is enlarged significantly, while the areas of the phase regions of NaCl, Li(2)SO(4)center dot H(2)O, and Li(2)SO(4)center dot 3Na(2)SO(4)center dot 12H(2)O are decreased. The calculated values of densities and refractive index in the quaternary system with empirical equations are in good agreement with the experimental values. Experimental studies on the metastable solubilities and the physicochemical properties including density. refractive index, conductivity, and pH values in the reciprocal quaternary system containing lithium, sodium. chloride, and sulfate at 273.15 K were determined with the method or isothermal evaporation. According to the experimental results, the dry-salt phase diagram, the water phase diagram, and the physicochemical properties versus composition were plotted. In the dry-salt phase diagram, there are three invariant points, seven solubility isotherm curves, and five crystallization fields corresponding to sodium chloride, mirabilite, lithium chloride dehydrate (LiCl center dot 2H(2)O), lithium sulfate monohydrate, and a double salt (Li(2)SO4 center dot 3Na(2)SO(4)center dot 12H(2)O). There were no solid solutions formed in the reciprocal quaternary system. The crystallizing region or mirabilite is the largest, while the region of LiCl center dot 2H(2)O is the smallest with the highest concentration and a strong salting-out effect to NaCl and Li(2)SO(4)center dot H(2)O. When compared with the stable phase diagram at 273.15 K. the area of the phase region of mirabilite is enlarged significantly, while the areas of the phase regions of NaCl, Li(2)SO(4)center dot H(2)O, and Li(2)SO(4)center dot 3Na(2)SO(4)center dot 12H(2)O are decreased. The calculated values of densities and refractive index in the quaternary system with empirical equations are in good agreement with the experimental values.
收录类别: SCI
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内容类型: 期刊论文
URI标识: http://ir.isl.ac.cn/handle/363002/1898
Appears in Collections:青海盐湖研究所知识仓储(2014年之前)_期刊论文

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Recommended Citation:
Wang, Shiqiang,Deng, Tianlong. Metastable Phase Equilibria of the Reciprocal Quaternary SystemContaining Lithium, Sodium, Chloride, and Sulfate Ions at 273.15 K[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA,2010,55(10):4211-4215.
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