Extraction and separation of Am(III) and Sr(II) by N,N,N´,N´-tetraoctyl-3-oxapentanediamide (TODGA)

Verfasser / Beitragende:
[H. Suzuki, Y. Sasaki, Y. Sugo, A. Apichaibukol, T. Kimura]
Ort, Verlag, Jahr:
2004
Enthalten in:
Radiochimica Acta/International journal for chemical aspects of nuclear science and technology, 92/8/2004(2004-08-01), 463-466
Format:
Artikel (online)
ID: 378930907
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024 7 0 |a 10.1524/ract.92.8.463.39276  |2 doi 
035 |a (NATIONALLICENCE)gruyter-10.1524/ract.92.8.463.39276 
245 0 0 |a Extraction and separation of Am(III) and Sr(II) by N,N,N´,N´-tetraoctyl-3-oxapentanediamide (TODGA)  |h [Elektronische Daten]  |c [H. Suzuki, Y. Sasaki, Y. Sugo, A. Apichaibukol, T. Kimura] 
520 3 |a By using an extractant, N,N,N´,N´-tetraoctyl-3-oxapentanediamide (TODGA), extraction and separation of Sr(II) from Am(III) were investigated for the partitioning of high level liquid waste (HLLW). Both metal ions, accompanied with the counter anion, NO3-, and HNO3 without dissociation, were extracted by TODGA. We used two distinct methods for the separation of Am(III) and Sr(II). A mixture of TODGA and monoamide reduced the distribution ratio D of Sr(II) compared to that without monoamide, whereas D(Am) was still high value under the identical condition. After extraction of Am(III) by TODGA and monoamide, Sr(II) remaining in HLLW can be extracted by using enough concentration of TODGA at the next step. In the other method, Sr(II) was coextracted with Am(III) by TODGA. It was observed that D(Sr) decreased with an increase of HNO3 from 3M to 6M HNO3 at the same TODGA concentration, while D(Am) increased until 6M HNO3. By using 6M HNO3, Am(III) and Sr(II) were separated after coextraction. 
540 |a © 2004 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 Suzuki  |D H.  |4 aut 
700 1 |a Sasaki  |D Y.  |4 aut 
700 1 |a Sugo  |D Y.  |4 aut 
700 1 |a Apichaibukol  |D A.  |4 aut 
700 1 |a Kimura  |D T.  |4 aut 
773 0 |t Radiochimica Acta/International journal for chemical aspects of nuclear science and technology  |d Oldenbourg Wissenschaftsverlag GmbH  |g 92/8/2004(2004-08-01), 463-466  |x 0033-8230  |q 92:8/2004<463  |1 2004  |2 92  |o ract 
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950 |B NATIONALLICENCE  |P 700  |E 1-  |a Sasaki  |D Y.  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Sugo  |D Y.  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Apichaibukol  |D A.  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Kimura  |D T.  |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 92/8/2004(2004-08-01), 463-466  |x 0033-8230  |q 92:8/2004<463  |1 2004  |2 92  |o ract 
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