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@INPROCEEDINGS{Wilden:908607,
      author       = {Wilden, Andreas and Schmidt, Holger and Modolo, Giuseppe
                      and Santiago-Schübel, Beatrix and Hupert, Michelle and
                      Mincher, Bruce J. and Mezyk, Stephen P. and Švehla,
                      Jaroslav and Grüner, Bohumir and Ekberg, Christian},
      title        = {{R}adiolysis of {N}-{D}onor {E}xtractants for the
                      {H}ydrometallurgical {S}eparation of {T}rivalent {A}ctinides
                      and {L}anthanides},
      reportid     = {FZJ-2022-02716},
      year         = {2022},
      abstract     = {N-donor ligands are currently discussed as promising
                      extractants in the hydrometallurgical separation of
                      trivalent actinides (An(III)) from lanthanides (Ln(III)) in
                      the treatment of used nuclear fuel. Due to their high
                      selectivity for An(III) under process-relevant conditions,
                      the separation from the chemically similar Ln(III) can be
                      achieved with a low number of process steps (e.g.,
                      extraction/scrubbing/stripping stages).
                      6,6’-Bis(5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-benzo[1,2,4]triazin-3-yl)[2,2’]bipyridine
                      (CyMe4BTBP) and
                      2,9-bis(1,2,4-triazin-3-yl)-1,10-phenantroline (CyMe4BTPhen)
                      are prominent members, therefore their radiolytic stability
                      against gamma radiolysis was studied in 1-octanol solution
                      with and without contact to HNO3 solution. The radiolysis
                      products were identified using high-resolution mass
                      spectrometry. Semi-quantitative analyses and pulsed electron
                      radiolysis were used to study the radiolysis mechanism for
                      both ligands. The changing solvent extraction properties as
                      a function of absorbed dose were studied as well.
                      Alpha-hydroxyoctyl radical addition products were identified
                      as the predominant radiolysis products. The results of this
                      collaborative study will be presented and discussed.[1][1]
                      Schmidt, H.; Wilden, A.; Modolo, G.; Bosbach, D.;
                      Santiago-Schübel, B.; Hupert, M.; Mincher, B. J.; Mezyk, S.
                      P.; Švehla, J.; Grüner, B.; Ekberg, C., Gamma and pulsed
                      electron radiolysis studies of CyMe4BTBP and CyMe4BTPhen:
                      identification of radiolysis products and effects on the
                      hydrometallurgical separation of trivalent actinides and
                      lanthanides. Radiat. Phys. Chem. 2021, 189, 109696.},
      month         = {Jul},
      date          = {2022-07-11},
      organization  = {3rd International Conference on
                       Ionizing Processes (ICIP 2022), Gather
                       Town (Online), 11 Jul 2022 - 14 Jul
                       2022},
      subtyp        = {Invited},
      cin          = {ZEA-3 / IEK-6},
      cid          = {I:(DE-Juel1)ZEA-3-20090406 / I:(DE-Juel1)IEK-6-20101013},
      pnm          = {1412 - Predisposal (POF4-141) / SACSESS - Safety of
                      ACtinide Separation proceSSes (323282) / Verbundprojekt
                      f-Kom: Untersuchungen zum grundlegenden Verständnis der
                      selektiven Komplexierung von f-Elementen; Teilprojekt E
                      (02NUK020E)},
      pid          = {G:(DE-HGF)POF4-1412 / G:(EU-Grant)323282 /
                      G:(BMBF)02NUK020E},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/908607},
}