Multitracer studies on the permeation of rare earth elements through a supported liquid membrane containing 2-ethylhexyl phosphonic acid-2-ethylhexyl ester (EHEHPA)

Verfasser / Beitragende:
[Shizuko Ambe, Daisuke Abe, Takuo Ozaki, Fumitoshi Ambe]
Ort, Verlag, Jahr:
2003
Enthalten in:
Radiochimica Acta/International journal for chemical aspects of nuclear science and technology, 91/4/2003(2003-04-01), 217-222
Format:
Artikel (online)
ID: 378867547
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024 7 0 |a 10.1524/ract.91.4.217.19965  |2 doi 
035 |a (NATIONALLICENCE)gruyter-10.1524/ract.91.4.217.19965 
245 0 0 |a Multitracer studies on the permeation of rare earth elements through a supported liquid membrane containing 2-ethylhexyl phosphonic acid-2-ethylhexyl ester (EHEHPA)  |h [Elektronische Daten]  |c [Shizuko Ambe, Daisuke Abe, Takuo Ozaki, Fumitoshi Ambe] 
520 3 |a The simultaneous permeation of Sc, Y, Ce, Pm, Eu, Gd, Yb and Lu through a 2-ethylhexyl phosphonic acid-2-ethylhexyl ester (EHEHPA)-decalin membrane supported on a microporous polytetrafluoroethylene sheet was studied using a multitracer. The permeation rates of the elements from feed solutions of various acidity into receiving solutions of 2mol dm-3 HCl were determined. The feed solution at pH 1.5 gave the highest percentage of permeation for Ce, Pm, Eu, Gd and Yb, amounting to about 90 after -25h permeation. The percentage of permeation of Y and Lu was the highest at pH 1, amounting to about 90 after -25h permeation. The permeation of Sc from all the feed solutions was less than 4 due to its adsorption on the vessel. The permeation from the feed solution at pH 1.5 into the receiving solutions of 1, 2, 3, 4 and 5mol dm-3 HCl showed that the maximum percentage of transport for Y and Yb was obtained in 2mol dm-3 HCl receiving solution and that for Lu in 2-4mol dm-3 HCl receiving solutions. The other elements gave a percentage of transport more than 90 in 1-5mol dm-3 HCl receiving solutions, showing no obvious HCl concentration effect. The permeability coefficients of these elements were determined. Solvent extraction of the elements by EHEHPA-decalin was also carried out for comparison. 
540 |a © 2003 Oldenbourg Wissenschaftsverlag GmbH 
690 7 |a Laboratory techniques, experiments  |2 nationallicence 
690 7 |a Analytical chemistry  |2 nationallicence 
690 7 |a Inorganic chemistry  |2 nationallicence 
700 1 |a Ambe  |D Shizuko  |4 aut 
700 1 |a Abe  |D Daisuke  |4 aut 
700 1 |a Ozaki  |D Takuo  |4 aut 
700 1 |a Ambe  |D Fumitoshi  |4 aut 
773 0 |t Radiochimica Acta/International journal for chemical aspects of nuclear science and technology  |d Oldenbourg Wissenschaftsverlag GmbH  |g 91/4/2003(2003-04-01), 217-222  |x 0033-8230  |q 91:4/2003<217  |1 2003  |2 91  |o ract 
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950 |B NATIONALLICENCE  |P 700  |E 1-  |a Ambe  |D Shizuko  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Abe  |D Daisuke  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Ozaki  |D Takuo  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Ambe  |D Fumitoshi  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Radiochimica Acta/International journal for chemical aspects of nuclear science and technology  |d Oldenbourg Wissenschaftsverlag GmbH  |g 91/4/2003(2003-04-01), 217-222  |x 0033-8230  |q 91:4/2003<217  |1 2003  |2 91  |o ract 
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