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Predictions on the solubility and equiscale line of water content for the quaternary system (Li plus Na + Cl + SO4 + H2O) at 298.15 K
Liu, Yuanhui1; Guo, Yafei1,2; Wang, Xuekui1; Song, Pengsheng2; Deng, Tianlong1
2015-03-01
Source PublicationCALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
Volume48Pages:13-17
SubtypeArticle
AbstractPitzer ion-interaction theory is widely used to calculate the solubilities of salt-water systems. In the paper, the solubilities and equiscale lines of water contents of the reciprocal quaternary system (Li+Na+Cl+SO4+H2O) at 298.15 K were calculated using Pitzer theory and Harvie, Moller, Weare solubility modeling approach (HMW model). In this predictive calculation, the quasi-Newton and dichotomy methods were used to solve the system of simultaneous equations of the equilibrium expressions among solid and liquid phases, and to obtain the ionic molalities, Janecke indices of phase diagram and the Janecke indices of the equiscale lines of water contents in the reciprocal quaternary system. Based on the Janecke indices, the dry-salt phase diagram and the equiscale lines of water-phase diagram were plotted. The predictive phase diagram via the theoretical calculation agrees well with the experimental phase diagram except for the phase region of double salt 2 (Li2SO4 center dot Na2SO4, Db2). Distributions of equiscale lines of water-phase diagram on the dry-salt diagram of the reciprocal quaternary system reflect that phase areas of double salts of Db1 and Db2 bear maximal water contents. The predictive phase diagram and equiscale lines of water-phase diagram are often necessary in the technological design of chemical engineering for the utilization of inorganic salts in salt lake brines. (C) 2014 Elsevier Ltd. All rights reserved.
KeywordSalt-water System Hmw Modeling Phase Diagram Equiscale Of Water-phase Diagram Lithium Salts
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordCHEMICAL-EQUILIBRIUM MODEL ; NATURAL-WATERS ; MINERAL SOLUBILITIES ; OSMOTIC COEFFICIENTS ; SOLUTION BEHAVIOR ; THERMODYNAMICS ; 25-DEGREES-C ; ELECTROLYTES ; TEMPERATURE ; LAKE
Indexed BySCI
Language英语
WOS Research AreaThermodynamics ; Chemistry
WOS SubjectThermodynamics ; Chemistry, Physical
WOS IDWOS:000350784500002
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Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/5562
Collection青海盐湖研究所知识仓储
Affiliation1.Tianjing 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, Xining 810008, Peoples R China
Recommended Citation
GB/T 7714
Liu, Yuanhui,Guo, Yafei,Wang, Xuekui,et al. Predictions on the solubility and equiscale line of water content for the quaternary system (Li plus Na + Cl + SO4 + H2O) at 298.15 K[J]. CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY,2015,48:13-17.
APA Liu, Yuanhui,Guo, Yafei,Wang, Xuekui,Song, Pengsheng,&Deng, Tianlong.(2015).Predictions on the solubility and equiscale line of water content for the quaternary system (Li plus Na + Cl + SO4 + H2O) at 298.15 K.CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY,48,13-17.
MLA Liu, Yuanhui,et al."Predictions on the solubility and equiscale line of water content for the quaternary system (Li plus Na + Cl + SO4 + H2O) at 298.15 K".CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY 48(2015):13-17.
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