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Ionic liquid based three-liquid-phase partitioning and one-step separation of Pt (IV), Pd (II) and Rh (III)
Zhang, Chao1,2,3; Huang, Kun1; Yu, Pinhua1,2,3; Liu, Huizhou1
2013-04-19
Source PublicationSEPARATION AND PURIFICATION TECHNOLOGY
Volume108Issue:0Pages:166-173
AbstractThe present work reports an interesting phenomena that the addition of hydrophobic ionic liquid, [C(4-)mim]PF6, into the oil-water two phase system of diisopentyl sulfide (S201)-nonane organic solutions and hydrochloric acid aqueous solutions containing Pt (IV), Pd (II) and Rh (III) chloric-complexing anions could induce the formation of a stable liquid-liquid-liquid three layered liquids coexisting medium for extraction and one-step separation of platinum, palladium and rhodium. The influences of H+ and Cl- concentrations in equilibrating aqueous solutions, the initial Pt (IV) concentration, the volume ratio of added [C(4)mim][PF6] to hydrochloric acid aqueous solution and the different salt ions in equilibrating aqueous solutions on the three-liquid-phase partitioning behaviors of three platinum metal ions were evaluated. The transferring of PtCl62- into the [C(4)mim]PF6 bottom phase in TLPS was proposed to be according with an anion exchange between PtCl62- and PF6- in ionic liquid. Therefore, the separated ionic liquid phase is not the solvent of organic extractants, but provides an extended separation capacity than the literature reported ionic liquid based two-phase extraction systems. The present work indicated that this ionic liquid based three-liquid system can be used to separate multi-metal coexisting solutions. (C) 2013 Elsevier B.V. All rights reserved.
KeywordIonic Liquids Three-liquid-phase Extraction (Tlpe) Platinum Group Metals (Pgms)
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
Indexed BySCI
Language英语
WOS KeywordACID SOLUTIONS ; METAL-IONS ; EXTRACTION ; PALLADIUM ; PLATINUM ; RECOVERY ; PYRIDINECARBOXAMIDES ; CHEMISTRY ; CATALYSIS ; SOLVENTS
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000317887200023
Citation statistics
Cited Times:27[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13587
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Chao,Huang, Kun,Yu, Pinhua,et al. Ionic liquid based three-liquid-phase partitioning and one-step separation of Pt (IV), Pd (II) and Rh (III)[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2013,108(0):166-173.
APA Zhang, Chao,Huang, Kun,Yu, Pinhua,&Liu, Huizhou.(2013).Ionic liquid based three-liquid-phase partitioning and one-step separation of Pt (IV), Pd (II) and Rh (III).SEPARATION AND PURIFICATION TECHNOLOGY,108(0),166-173.
MLA Zhang, Chao,et al."Ionic liquid based three-liquid-phase partitioning and one-step separation of Pt (IV), Pd (II) and Rh (III)".SEPARATION AND PURIFICATION TECHNOLOGY 108.0(2013):166-173.
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