ISL OpenIR  > 青海盐湖研究所知识仓储
Isopiestic studies of synthetic salt lake brine system Li-Na-K-Mg-Cl-SO4-H2O at 25 degrees C and applications of ion-interaction model
Yao, Y; Song, PS; Wang, RL; Long, GM
2002-11-01
Source PublicationACTA CHIMICA SINICA
Volume60Issue:11Pages:2004-2010
SubtypeArticle
AbstractThe water activities and osmotic coefficients have been determined at 25 degreesC, over the range of concentrations from diluted up to saturated with respect to the solute of NaCl for the synthetic salt lake brine Na-K-Mg-Cl-SO4-H2O systems by isopiestic method using an improved apparatus. The two synthetic brine stock solutions were prepared respectively in accordance with the ionic strength fractions of the main ion components of Yi Li-Ping and Dong Tai. salt lake interstitial brines on Qinghai-Tibet plateau of China. The thermodynamic properties were compared between the two brines, and a cause of formation of the differences in concentrations between the two brines has been indicated physicochemically. The calculated osmotic coefficients using the ion-interaction model of the salt lake brine systems agree with the experimental data obtained in this work, with standard deviations of 0.0078 and 0.0145 for Yi U-Ping and Dong Tai. synthetic brines respectively. The saturation indices [ In (K'/K) ] were calculated for the salt components which may crystallize out from the brines for Dong Tai. interstitial brine and its concentrated brines at different evaporation stages in the isothermal evaporation-crystallization experiment at 25 degreesC, over the range of ionic strengths from 9.766 to 20.52 mol (.) kg(-1).(.) The calculated results show the change rules in saturation indices of the salts in the brines during the evaporating of the brine and agree reasonably with the field observation result and with the salt sequences of crystallizations from the brine in the evaporation experiment. These studies demonstrate well the applicability of the model of the salt lake brine systems extended from Pitzer ion-interaction model for the predictions of the thermodynamic properties and the mineral sequences to the salt lake brine system containing lithium with high ionic strengths.
KeywordSalt Lake Brine System Containing Lithium Osmotic Coefficient Isopiestic Method Ion-interaction Model
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordNATURAL-WATERS ; THERMODYNAMICS ; 25-DEGREES-C ; PREDICTION
Indexed BySCI
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000179416400017
Citation statistics
Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/6075
Collection青海盐湖研究所知识仓储
AffiliationChinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China
Recommended Citation
GB/T 7714
Yao, Y,Song, PS,Wang, RL,et al. Isopiestic studies of synthetic salt lake brine system Li-Na-K-Mg-Cl-SO4-H2O at 25 degrees C and applications of ion-interaction model[J]. ACTA CHIMICA SINICA,2002,60(11):2004-2010.
APA Yao, Y,Song, PS,Wang, RL,&Long, GM.(2002).Isopiestic studies of synthetic salt lake brine system Li-Na-K-Mg-Cl-SO4-H2O at 25 degrees C and applications of ion-interaction model.ACTA CHIMICA SINICA,60(11),2004-2010.
MLA Yao, Y,et al."Isopiestic studies of synthetic salt lake brine system Li-Na-K-Mg-Cl-SO4-H2O at 25 degrees C and applications of ion-interaction model".ACTA CHIMICA SINICA 60.11(2002):2004-2010.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Yao, Y]'s Articles
[Song, PS]'s Articles
[Wang, RL]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yao, Y]'s Articles
[Song, PS]'s Articles
[Wang, RL]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yao, Y]'s Articles
[Song, PS]'s Articles
[Wang, RL]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.