% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@INPROCEEDINGS{DiazGomez:1008574,
      author       = {Diaz Gomez, Laura Johana and Weßling, Patrik and Wilden,
                      Andreas and Modolo, Giuseppe},
      title        = {{P}reliminary extraction and characterization studies of
                      water-soluble octa carboxylic acids for the separation of
                      trivalent actinides},
      reportid     = {FZJ-2023-02407},
      year         = {2023},
      abstract     = {Separation of An and Ln is an important part in the
                      recycling process of nuclear fuel. Therefore, many ligands
                      have been tested over the years and several separation
                      processes have successfully been demonstrated on the
                      laboratory scale (e.g., AmSel, SANEX, DIAMEX). Current
                      research aims at the development of new ligands which are
                      built only with carbon, hydrogen, oxygen, and nitrogen
                      (CHON), because they can be incinerated completely
                      withoutsecondary waste production. Within the BMUV funded
                      SEPAM project, we tested new water-soluble ligands for the
                      selective separation of Am(III) and Cm(III) from the
                      trivalent Ln. These ligands have the characteristic of
                      having eight carboxylic acid groups in the outer
                      peripheryand differ in the central core, where the metal ion
                      complexation occurs (pyridine, bipyridine and
                      phenanthroline, Figure 1). These ligands might act as CHON
                      alternatives to the sulphonated aqueous ligands used in the
                      i- SANEX1 and AmSel2 systems (SO3-Ph-BTP, SO3-Ph-BTBP1 and
                      AmSel2 systems (SO3-Ph-BTP, SO3-Ph-BTBP) We present results
                      of extraction studies using the three ligands. 2,6-Bis
                      [5,6-di(3,4-dicarboxyphenyl)-1,2,4-triazin-3-yl] pyridine
                      (BTP-octa-COOH) showed the best results with good separation
                      factors for Eu/Am. Therefore, BTP-octa-COOH might be an
                      interesting new hydrophilic complexant and CHON-alternative
                      to SO3-Ph-BTP in the i-SANEX system. The complexation of the
                      ligand with 248Cm(III) and Eu(III) was studied using t ime
                      resolved laser-induced spectroscopy (TRLFS) in HClO4 and
                      HNO3 to determine the stability constants of each formed
                      species. We present and discuss the results of extraction
                      and TRLFS experiments. Funding for this research was
                      provided by the Federal Ministry for the Environment, Nature
                      Conservation, Nuclear Safety and Consumer Protection,
                      project SEPAM (02E11921A).},
      organization  = {IEK-6 Institutsseminar, (Germany)},
      subtyp        = {Other},
      cin          = {IEK-6},
      cid          = {I:(DE-Juel1)IEK-6-20101013},
      pnm          = {1412 - Predisposal (POF4-141) / Verbundprojekt:
                      Untersuchungen zur SEParation von AMericium aus
                      hochradioaktiven Abfalllösungen (SEPAM), Teilprojekt A
                      (02E11921A)},
      pid          = {G:(DE-HGF)POF4-1412 / G:(BMWi)02E11921A},
      typ          = {PUB:(DE-HGF)31},
      url          = {https://juser.fz-juelich.de/record/1008574},
}