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Separation of Eu(III) with supported dispersion liquid membrane system containing D2EHPA as carrier and HNO3 solution as stripping solution
Pei Liang1; Wang Liming2; Yu Guoqiang3
2011
Source PublicationJOURNAL OF RARE EARTHS
Volume29Issue:1Pages:7-14
AbstractThe Eu(III) separation in supported dispersion liquid membrane (SDLM), with polyvinylidene fluoride membrane (PVDF) as the support and dispersion solution containing HNO3 solution as the stripping solution and Di(2-ethylhexyl) phosphoric acid (D2EHPA) dissolved in kerosene as the membrane solution, was studied. The effects of pH value, initial concentration of Eu(III) and different ionic strengths in the feed phase, volume ratio of membrane solution and stripping solution, concentration of HNO3 solution, concentration of carrier, different stripping agents in the dispersion phase on the separation of Eu(III) were also investigated, respectively. As a result, the optimum separation conditions of Eu(III) were obtained as the concentration of HNO3 solution was 4.00 mol/L, concentration of D2EHPA was 0.160 mol/L, and volume ratio of membrane solution to stripping solution was 30: 30 in the dispersion phase, and pH value was 5.00 in the feed phase. Ionic strength had no obvious effect on the separation of Eu(III). Under the optimum conditions studied, when initial concentration of Eu(III) was 1.00x10(-4) mol/L, the separation rate of Eu(III) was up to 94.2% during the separation period of 35 min. The kinetic equation was developed in terms of the law of mass diffusion and the theory of interface chemistry. The results were in good agreement with the literature data.
SubtypeArticle
KeywordSupported Dispersion Liquid Membrane Di(2-ethylhexyl) Phosphoric Acid Europium(Iii) Dispersion Phase Separation Flux Separation Rate
WOS HeadingsScience & Technology ; Physical Sciences
WOS Subject ExtendedChemistry
WOS KeywordMETAL-ION SEPARATION ; SOLVENT-EXTRACTION ; WASTE-WATER ; NICKEL IONS ; REMOVAL ; STABILITY ; TRANSPORT ; CONTACTORS ; PHOSPHATE ; RECOVERY
Indexed BySCI
Language英语
WOS SubjectChemistry, Applied
WOS IDWOS:000287021900002
PublisherELSEVIER SCIENCE BV
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Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/68070
Collection中国科学院地理科学与资源研究所
Corresponding AuthorPei Liang
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
2.Xian Polytech Univ, Sch Environm & Chem Engn, Xian 710048, Peoples R China
3.Xian Univ Technol, Fac Water Resources & Hydraul Power, Xian 710048, Peoples R China
Recommended Citation
GB/T 7714
Pei Liang,Wang Liming,Yu Guoqiang. Separation of Eu(III) with supported dispersion liquid membrane system containing D2EHPA as carrier and HNO3 solution as stripping solution[J]. JOURNAL OF RARE EARTHS,2011,29(1):7-14.
APA Pei Liang,Wang Liming,&Yu Guoqiang.(2011).Separation of Eu(III) with supported dispersion liquid membrane system containing D2EHPA as carrier and HNO3 solution as stripping solution.JOURNAL OF RARE EARTHS,29(1),7-14.
MLA Pei Liang,et al."Separation of Eu(III) with supported dispersion liquid membrane system containing D2EHPA as carrier and HNO3 solution as stripping solution".JOURNAL OF RARE EARTHS 29.1(2011):7-14.
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