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@ARTICLE{Wilden:906294,
      author       = {Wilden, Andreas and Schneider, Dimitri and Paparigas, Zaina
                      and Henkes, Maximilian and Kreft, Fabian and Geist, Andreas
                      and Mossini, Eros and Macerata, Elena and Mariani, Mario and
                      Gullo, Maria Chiara and Casnati, Alessandro and Modolo,
                      Giuseppe},
      title        = {{S}elective actinide({III}) separation using
                      2,6-bis[1-(propan-1-ol)-1,2,3-triazol-4-yl]pyridine
                      ({P}y{T}ri-{D}iol) in the innovative-{SANEX} process:
                      laboratory scale counter current centrifugal contactor
                      demonstration},
      journal      = {Radiochimica acta},
      volume       = {},
      issn         = {0033-8230},
      address      = {Berlin},
      publisher    = {˜Deœ Gruyter},
      reportid     = {FZJ-2022-01349},
      pages        = {21 p.},
      year         = {2022},
      abstract     = {An innovative-SANEX process for the selective separation of
                      the trivalent actinides americium and curium from a
                      simulated PUREX raffinate solution was successfully
                      demonstrated on the laboratory scale using a 16-stage 1 cm
                      annular centrifugal contactor setup. The solvent was
                      composed of 0.2 mol L−1
                      N,N,N',N'-tetra-n-octyl-diglycolamide (TODGA) and $5\%$ v/v
                      1-octanol in a kerosene diluent. Zr(IV) and Pd(II)
                      co-extraction was prevented using
                      trans-1,2-diaminocyclohexane-N,N,N',N'-tetraacetic acid
                      (CDTA) as a masking agent in the feed. The actinide(III)
                      selective back-extraction was achieved using
                      2,6-bis[1-(propan-1-ol)-1,2,3-triazol-4-yl]pyridine
                      (PyTri-Diol) in 0.45 mol L−1 HNO3 as a CHON alternative to
                      the sulfur-containing stripping agent used in a previous
                      version of the innovative-SANEX process. The new process
                      described in this paper showed excellent performance for the
                      recovery of An(III). An An(III) product with a
                      quasi-quantitative recovery of americium and curium
                      $(≥99.9\%)$ and very good separation from fission and
                      activation products was obtained (decontamination factors
                      ≥4,000). Only a slight contamination with Zr and Ru was
                      observed. This test demonstrates the successful use of
                      molecules containing only carbon, hydrogen, oxygen, and
                      nitrogen atoms (so-called CHON molecules) for the selective
                      separation of An(III) from a simulated PUREX raffinate
                      solution. By avoiding sulfur- or phosphorous-containing
                      molecules, the generation of secondary radioactive waste
                      during process operation can be reduced drastically.},
      cin          = {IEK-6},
      ddc          = {610},
      cid          = {I:(DE-Juel1)IEK-6-20101013},
      pnm          = {1412 - Predisposal (POF4-141) / GENIORS - GEN IV Integrated
                      Oxide fuels recycling strategies (755171) / PATRICIA -
                      Partitioning And Transmuter Research Initiative in a
                      Collaborative Innovation Action (945077)},
      pid          = {G:(DE-HGF)POF4-1412 / G:(EU-Grant)755171 /
                      G:(EU-Grant)945077},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000784344500001},
      doi          = {10.1515/ract-2022-0014},
      url          = {https://juser.fz-juelich.de/record/906294},
}