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Extraction of uranium and transuranium elements with tert-butylthiacalix[4]arene from carbonate-alkaline solutions.

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Title: Extraction of uranium and transuranium elements with tert-butylthiacalix[4]arene from carbonate-alkaline solutions.
Authors: Kuzovkina, Elena V.1, Lavrinovich, Elena A.1, Novikov, Alexander P.1, Stepanova, Ekaterina S.2,3, Karavan, Maria D.2,3,4 mkaravan@khlopin.ru, Smirnov, Igor V.2,3,4
Source: Journal of Radioanalytical & Nuclear Chemistry. Mar2018, Vol. 315 Issue 3, p639-642. 4p.
Subjects: Uranium isotopes, Transuranium elements, Calixarenes, Carbonates, Alkaline solutions
Abstract: Extraction efficiency of uranium and transuranium elements (Np, Pu, Am and Cm) with tert-butylthiacalix[4]arene TCA from carbonate-alkaline solutions is studied and compared with that of europium (III). Plutonium (III, IV) extraction efficiency with TCA is found to be lower comparing with that of trivalent americium and europium. Extraction efficiency of studied radionuclides decreases as following: Am » Eu » Pu (III), U(VI), Np (V) > Pu (IV) at pH 12. Carbonate concentration increase in aqueous phase suppresses significantly extraction of all studied radionuclides, except americium. This condition can be used for americium individual recovery from complex radioactive carbonate-alkaline solutions. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Radioanalytical & Nuclear Chemistry is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: <searchLink fieldCode="DE" term="%22Uranium+isotopes%22">Uranium isotopes</searchLink><br /><searchLink fieldCode="DE" term="%22Transuranium+elements%22">Transuranium elements</searchLink><br /><searchLink fieldCode="DE" term="%22Calixarenes%22">Calixarenes</searchLink><br /><searchLink fieldCode="DE" term="%22Carbonates%22">Carbonates</searchLink><br /><searchLink fieldCode="DE" term="%22Alkaline+solutions%22">Alkaline solutions</searchLink>
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  Data: Extraction efficiency of uranium and transuranium elements (Np, Pu, Am and Cm) with tert-butylthiacalix[4]arene TCA from carbonate-alkaline solutions is studied and compared with that of europium (III). Plutonium (III, IV) extraction efficiency with TCA is found to be lower comparing with that of trivalent americium and europium. Extraction efficiency of studied radionuclides decreases as following: Am » Eu » Pu (III), U(VI), Np (V) > Pu (IV) at pH 12. Carbonate concentration increase in aqueous phase suppresses significantly extraction of all studied radionuclides, except americium. This condition can be used for americium individual recovery from complex radioactive carbonate-alkaline solutions. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Journal of Radioanalytical & Nuclear Chemistry is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s10967-018-5712-9
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        Text: English
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      – SubjectFull: Carbonates
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              Text: Mar2018
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