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Statements

Subject Item
n2:RIV%2F68407700%3A21340%2F12%3A00194636%21RIV13-MSM-21340___
rdf:type
n11:Vysledek skos:Concept
dcterms:description
The CyMe4-BTBP and its derivatives have been demonstrated to be prospective extractants for the liquid-liquid extraction of minor actinides over lanthanides from high-level liquid waste issuing the reprocessing of the spent nuclear fuel. This study will summarize the results of testing CyMe4-BTBP, its new derivatives and other BTBPs for the separation of Am(III) from Eu(III) from nitric acid solutions. Influence of the diluents such as n octanol and cyclohexanone and its derivatives will be discussed. In addition to the basic testing of the dependences of Am and Eu distribution ratios and their mutual separation factors on nitric acid concentrations, the results of thermodynamic and kinetic studies will be presented. Attention will be paid to the fact that a significant kinetic effect was observed for the SF(Am/Eu) values. This effect is caused by the usually slower kinetics of Am extraction when compared with the extraction of Eu. It will be shown that, as a result of this phenomenon, strict control of the kinetics of the separation process is needed to reach maximum SF(Am/Eu). The CyMe4-BTBP and its derivatives have been demonstrated to be prospective extractants for the liquid-liquid extraction of minor actinides over lanthanides from high-level liquid waste issuing the reprocessing of the spent nuclear fuel. This study will summarize the results of testing CyMe4-BTBP, its new derivatives and other BTBPs for the separation of Am(III) from Eu(III) from nitric acid solutions. Influence of the diluents such as n octanol and cyclohexanone and its derivatives will be discussed. In addition to the basic testing of the dependences of Am and Eu distribution ratios and their mutual separation factors on nitric acid concentrations, the results of thermodynamic and kinetic studies will be presented. Attention will be paid to the fact that a significant kinetic effect was observed for the SF(Am/Eu) values. This effect is caused by the usually slower kinetics of Am extraction when compared with the extraction of Eu. It will be shown that, as a result of this phenomenon, strict control of the kinetics of the separation process is needed to reach maximum SF(Am/Eu).
dcterms:title
Kinetics Effects in the Am/Eu Separation with BTBP-ligands Kinetics Effects in the Am/Eu Separation with BTBP-ligands
skos:prefLabel
Kinetics Effects in the Am/Eu Separation with BTBP-ligands Kinetics Effects in the Am/Eu Separation with BTBP-ligands
skos:notation
RIV/68407700:21340/12:00194636!RIV13-MSM-21340___
n11:predkladatel
n17:orjk%3A21340
n3:aktivita
n12:S n12:P
n3:aktivity
P(7G08075), S
n3:dodaniDat
n8:2013
n3:domaciTvurceVysledku
n9:7740468 n9:3482987 n9:5928028
n3:druhVysledku
n14:O
n3:duvernostUdaju
n10:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
144656
n3:idVysledku
RIV/68407700:21340/12:00194636
n3:jazykVysledku
n13:eng
n3:klicovaSlova
Extraction; americium; BTBP
n3:klicoveSlovo
n6:BTBP n6:Extraction n6:americium
n3:kontrolniKodProRIV
[8DFADA80D3D2]
n3:obor
n4:CH
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
6
n3:projekt
n16:7G08075
n3:rokUplatneniVysledku
n8:2012
n3:tvurceVysledku
Lewis, F. W. John, Jan Distler, Petr Harwood, L. M. Šťastná, Kamila Hudson, M. J.
n15:organizacniJednotka
21340