Radiolysis of C5-BTBP in cyclohexanone irradiated in the absence and presence of an aqueous phase
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F12%3A00376237" target="_blank" >RIV/61388980:_____/12:00376237 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1524/ract.2012.1908" target="_blank" >http://dx.doi.org/10.1524/ract.2012.1908</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1524/ract.2012.1908" target="_blank" >10.1524/ract.2012.1908</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Radiolysis of C5-BTBP in cyclohexanone irradiated in the absence and presence of an aqueous phase
Popis výsledku v původním jazyce
Spent nuclear fuel contains many highly radioactive species; hence solvents used in reprocessing will be subjected to radiolysis. In this study, solvents containing one of the BTBP molecules intended for the separation of trivalent actinides and lanthanides, the so called C5-BTBP, have been subjected to radiolysis and hydrolysis. We present here that this compound shows a dramatic decrease in both distribution ratios and separation factor when irradiated with higher doses up to 50 kGy; particularly in the presence of an aqueous phase. Furthermore, fast hydrolytic degradation is observed, which significantly contributes to the overall degree of decomposition. This is supported by speciation studies performed by HPLC and LC-MS methods. Proposed structures of the highest-yield degradation products are presented and they seem to confirm previously drawn structures for these products. From these studies it can be concluded that the presence of nitric acid or nitrate during irradiation leads
Název v anglickém jazyce
Radiolysis of C5-BTBP in cyclohexanone irradiated in the absence and presence of an aqueous phase
Popis výsledku anglicky
Spent nuclear fuel contains many highly radioactive species; hence solvents used in reprocessing will be subjected to radiolysis. In this study, solvents containing one of the BTBP molecules intended for the separation of trivalent actinides and lanthanides, the so called C5-BTBP, have been subjected to radiolysis and hydrolysis. We present here that this compound shows a dramatic decrease in both distribution ratios and separation factor when irradiated with higher doses up to 50 kGy; particularly in the presence of an aqueous phase. Furthermore, fast hydrolytic degradation is observed, which significantly contributes to the overall degree of decomposition. This is supported by speciation studies performed by HPLC and LC-MS methods. Proposed structures of the highest-yield degradation products are presented and they seem to confirm previously drawn structures for these products. From these studies it can be concluded that the presence of nitric acid or nitrate during irradiation leads
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
CA - Anorganická chemie
OECD FORD obor
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Návaznosti výsledku
Projekt
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Návaznosti
Z - Vyzkumny zamer (s odkazem do CEZ)
Ostatní
Rok uplatnění
2012
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Radiochimica acta
ISSN
0033-8230
e-ISSN
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Svazek periodika
100
Číslo periodika v rámci svazku
4
Stát vydavatele periodika
DE - Spolková republika Německo
Počet stran výsledku
10
Strana od-do
273-282
Kód UT WoS článku
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EID výsledku v databázi Scopus
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