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Lattice Boltzmann model for simulation on leaching process of weathered elution-deposited rare earth ore
Qiu Tingsheng1; Zhu Dongmei1; Wu Chengyou1,2,3; Wang Limin2
2017-10-01
Source PublicationJOURNAL OF RARE EARTHS
ISSN1002-0721
Volume35Issue:10Pages:1014-1021
Abstract

The lattice Boltzmann model with coupled chemical reaction was proposed to simulate the ion exchange process of rare earth leaching and verified by comparison with both empirical correlation of mass transfer coefficient and unreacted-core shrinking model. By simulation, the zonation phenomenon of leaching reagent in the leaching column was presented, and the breakthrough curve of leaching reagent was obtained. When t=50 s, there existed the saturated and exchange zones, and the leaching reagent concentration decreased gradually from 20 to 9.3 g/L. In accordance with the breakthrough curve, the breakthrough capacity of ion-type rare earth ore and the adsorbed ion concentration of leaching reagent were derived, the time of t=25 s was the breakthrough point of ammonium ion in leaching reagent and the breakthrough capacity of the rare earth ore was 125 g/L. Besides, the chemical kinetics parameters used for the solute transfer process of rare earth leaching were obtained by the simulation and then were used to determine the rate-limiting steps of rare earth leaching process.

KeywordLattice Boltzmann Model Rare Earth Leaching Ion Exchange Simulation Solute Transfer
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/S1002-0721(17)61007-X
Indexed BySCI
Language英语
WOS KeywordMass-transfer ; Process Optimization ; Clay-minerals ; Porous-media ; Ion-exchange ; Waste-water ; Kinetics ; Precipitation ; Dissolution ; Extraction
WOS Research AreaChemistry
WOS SubjectChemistry, Applied
Funding OrganizationNational Natural Science Foundation of China(51674125 ; National Key Basic Research Program of China(2015CB251402) ; Chinese Academy of Sciences(QYZDB-SSW-SYS029) ; Outstanding Doctoral Dissertation Project Fund of JXUST(YB2016001) ; 51776212 ; 91434113)
WOS IDWOS:000415702200010
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/23361
Collection多相复杂系统国家重点实验室
Affiliation1.Jiangxi Univ Sci & Technol, Sch Resource & Environm Engn, Ganzhou 341000, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
3.Changsha Res Inst Min & Met Co Ltd, Changsha 410012, Hunan, Peoples R China
Recommended Citation
GB/T 7714
Qiu Tingsheng,Zhu Dongmei,Wu Chengyou,et al. Lattice Boltzmann model for simulation on leaching process of weathered elution-deposited rare earth ore[J]. JOURNAL OF RARE EARTHS,2017,35(10):1014-1021.
APA Qiu Tingsheng,Zhu Dongmei,Wu Chengyou,&Wang Limin.(2017).Lattice Boltzmann model for simulation on leaching process of weathered elution-deposited rare earth ore.JOURNAL OF RARE EARTHS,35(10),1014-1021.
MLA Qiu Tingsheng,et al."Lattice Boltzmann model for simulation on leaching process of weathered elution-deposited rare earth ore".JOURNAL OF RARE EARTHS 35.10(2017):1014-1021.
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