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Separation of Eu3+ Using a Novel Dispersion Combined Liquid Membrane with P507 in Kerosene as the Carrier
Pei Liang1,2; Wang Liming2; Fu Xinglong2
2011-02-01
Source PublicationCHINESE JOURNAL OF CHEMICAL ENGINEERING
Volume19Issue:1Pages:33-39
AbstractThe separation of Eu3+ is studied with a dispersion combined liquid membrane (DCLM), in which polyvinylidene fluoride membrane (PVDF) is used as the liquid membrane support, dispersion solution containing HCl solution as the stripping solution, and 2-ethyl hexyl phosphonic acid-mono-2-ethyl hexyl ester (P507) dissolved in kerosene as the membrane solution. The effects of pH value, initial concentration of Eu3+ and different ionic strength in the feed phase, volume ratio of membrane solution to stripping solution, concentration of HCl solution, concentration of carrier, different stripping agents in the dispersion phase on the separation are investigated. The optimum condition for separation of Eu3+ is that concentration of HCl solution is 4.0 mol.L-1, concentration of carrier is 0.16 mol.L-1, and volume ratio of membrane solution to stripping solution is 30 : 30 in the dispersion phase, and pH value is 4.2 in the feed phase. The ionic strength has no significant effect on separation of Eu3+. Under the optimum condition, when the initial concentration of Eu3+ is 0.8x10(-4) mol.L-1, the separation percentage of Eu3+ is 95.3% during the separation time of 130 min. The kinetic equation is developed in terms of the law of mass diffusion and the theory of interface chemistry. The diffusion coefficient of Eu3+ in the membrane and the thickness of diffusion layer between feed phase and membrane phase are obtained and their values are 1.48x10(-7) m(2).s(-1) and 36.6 mu m, respectively. The results obtained are in good agreement with literature data.
SubtypeArticle
KeywordDispersion Combined Liquid Membrane 2-ethyl Hexyl Phosphonic Acid-mono-2-ethyl Hexyl Ester Separation Europium(3+)
WOS HeadingsScience & Technology ; Technology
WOS Subject ExtendedEngineering
WOS KeywordACID MONO-2-ETHYLHEXYL ESTER ; METAL-ION SEPARATION ; STRIP DISPERSION ; WASTE-WATER ; EXTRACTION ; TRANSPORT ; STABILITY ; REMOVAL
Indexed BySCI
Language英语
WOS SubjectEngineering, Chemical
WOS IDWOS:000288235600005
PublisherCHEMICAL INDUSTRY PRESS
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/68158
Collection中国科学院地理科学与资源研究所
Corresponding AuthorPei Liang
Affiliation1.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Xian Univ Technol, Fac Water Resources & Hydraul Power, Xian 710048, Peoples R China
Recommended Citation
GB/T 7714
Pei Liang,Wang Liming,Fu Xinglong. Separation of Eu3+ Using a Novel Dispersion Combined Liquid Membrane with P507 in Kerosene as the Carrier[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2011,19(1):33-39.
APA Pei Liang,Wang Liming,&Fu Xinglong.(2011).Separation of Eu3+ Using a Novel Dispersion Combined Liquid Membrane with P507 in Kerosene as the Carrier.CHINESE JOURNAL OF CHEMICAL ENGINEERING,19(1),33-39.
MLA Pei Liang,et al."Separation of Eu3+ Using a Novel Dispersion Combined Liquid Membrane with P507 in Kerosene as the Carrier".CHINESE JOURNAL OF CHEMICAL ENGINEERING 19.1(2011):33-39.
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