CAS OpenIR  > 研究所(批量导入)
Three-Liquid-Phase Extraction and Separation of Rare Earths and Fe, Al, and Si by a Novel Mixer-Settler-Mixer Three-Chamber Integrated Extractor
Alternative TitleInd. Eng. Chem. Res.
Sui, Na1,2; Huang, Kun1; Zheng, Han1,2; Lin, Jieyuan1,2; Wang, Xiaoqin1,2; Xiao, Chuanxu1,2; Liu, Huizhou1
2014-10-15
Source PublicationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
ISSN0888-5885
Volume53Issue:41Pages:16033-16043
AbstractIn the present work, three-liquid-phase extraction and separation of rare earths and Fe, Al, and Si by a novel mixersettlermixer three-chamber integrated extractor was investigated. Various three-liquid-phase systems (TLPSs) involving different organic extractants were employed to conduct continuous three-liquid-phase separation of rare earths and Fe, Al, and Si. In the TLPS of PC-88A/PEG 2000/(NH4)(2)SO4H2O, light, middle, and heavy rare-earth ions had different distribution behaviors selectively into the organic top phase and salt-rich bottom phase, while most of Fe, Al, and Si were enriched into the poly(ethylene glycol) (PEG)-rich middle phase. Influences from aqueous pH values, agitation speeds, and flow ratios on three-liquid-phase partition behaviors of rare earths and Fe, Al, Si were evaluated. Experimental results indicated that an increase of the aqueous pH value facilitated the extraction of rare earths into the organic top phase and enrichment of Fe, Al, and Si into the PEG-rich middle phase. An increase of the agitation speed in three-phase mixer resulted in a change in the disappearance time of the dispersion band in a three-phase settler. The agitation speeds in a two-phase mixer and flow ratios of the organic phase to an aqueous biphasic mixture resulted in a change in the phase volumes of three-layered liquid flows in a three-phase settler so as to affect the partition behaviors of rare earths and Fe, Al, and Si. On the basis of analysis of the phase-forming behaviors of TLPSs and partition behaviors of rare earths and Fe, Al, and Si, the novel mixersettlermixer extractor is recommended for future application of continuous and countercurrent TLPE processes.; In the present work, three-liquid-phase extraction and separation of rare earths and Fe, Al, and Si by a novel mixersettlermixer three-chamber integrated extractor was investigated. Various three-liquid-phase systems (TLPSs) involving different organic extractants were employed to conduct continuous three-liquid-phase separation of rare earths and Fe, Al, and Si. In the TLPS of PC-88A/PEG 2000/(NH4)(2)SO4H2O, light, middle, and heavy rare-earth ions had different distribution behaviors selectively into the organic top phase and salt-rich bottom phase, while most of Fe, Al, and Si were enriched into the poly(ethylene glycol) (PEG)-rich middle phase. Influences from aqueous pH values, agitation speeds, and flow ratios on three-liquid-phase partition behaviors of rare earths and Fe, Al, Si were evaluated. Experimental results indicated that an increase of the aqueous pH value facilitated the extraction of rare earths into the organic top phase and enrichment of Fe, Al, and Si into the PEG-rich middle phase. An increase of the agitation speed in three-phase mixer resulted in a change in the disappearance time of the dispersion band in a three-phase settler. The agitation speeds in a two-phase mixer and flow ratios of the organic phase to an aqueous biphasic mixture resulted in a change in the phase volumes of three-layered liquid flows in a three-phase settler so as to affect the partition behaviors of rare earths and Fe, Al, and Si. On the basis of analysis of the phase-forming behaviors of TLPSs and partition behaviors of rare earths and Fe, Al, and Si, the novel mixersettlermixer extractor is recommended for future application of continuous and countercurrent TLPE processes.
KeywordLiquid-liquid-extraction Solvent-extraction Phosphoric-acid Chloride Solutions Waste-water Recovery System Mixtures Elements Agent
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1021/ie5025694
URL查看原文
Indexed BySCI
Language英语
WOS KeywordLIQUID-LIQUID-EXTRACTION ; SOLVENT-EXTRACTION ; PHOSPHORIC-ACID ; CHLORIDE SOLUTIONS ; WASTE-WATER ; RECOVERY ; SYSTEM ; MIXTURES ; ELEMENTS ; AGENT
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000343277100026
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/11686
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Sui, Na,Huang, Kun,Zheng, Han,et al. Three-Liquid-Phase Extraction and Separation of Rare Earths and Fe, Al, and Si by a Novel Mixer-Settler-Mixer Three-Chamber Integrated Extractor[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2014,53(41):16033-16043.
APA Sui, Na.,Huang, Kun.,Zheng, Han.,Lin, Jieyuan.,Wang, Xiaoqin.,...&Liu, Huizhou.(2014).Three-Liquid-Phase Extraction and Separation of Rare Earths and Fe, Al, and Si by a Novel Mixer-Settler-Mixer Three-Chamber Integrated Extractor.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,53(41),16033-16043.
MLA Sui, Na,et al."Three-Liquid-Phase Extraction and Separation of Rare Earths and Fe, Al, and Si by a Novel Mixer-Settler-Mixer Three-Chamber Integrated Extractor".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 53.41(2014):16033-16043.
Files in This Item:
File Name/Size DocType Version Access License
Three-Liquid-Phase E(4634KB)期刊论文出版稿限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Sui, Na]'s Articles
[Huang, Kun]'s Articles
[Zheng, Han]'s Articles
Baidu academic
Similar articles in Baidu academic
[Sui, Na]'s Articles
[Huang, Kun]'s Articles
[Zheng, Han]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Sui, Na]'s Articles
[Huang, Kun]'s Articles
[Zheng, Han]'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.