Hauptseite > Publikationsdatenbank > Preliminary extraction and characterization studies of water-soluble octa carboxylic acids for the separation of trivalent actinides > print

001     1008574
005     20240708133922.0
037 _ _ |a FZJ-2023-02407
041 _ _ |a English
100 1 _ |a Diaz Gomez, Laura Johana
|0 P:(DE-Juel1)190476
|b 0
|e Corresponding author
|u fzj
111 2 _ |a IEK-6 Institutsseminar
|w Germany
245 _ _ |a Preliminary extraction and characterization studies of water-soluble octa carboxylic acids for the separation of trivalent actinides
|f 2023-06-14 -
260 _ _ |c 2023
336 7 _ |a Conference Paper
|0 33
|2 EndNote
336 7 _ |a Other
|2 DataCite
336 7 _ |a INPROCEEDINGS
|2 BibTeX
336 7 _ |a LECTURE_SPEECH
|2 ORCID
336 7 _ |a Talk (non-conference)
|b talk
|m talk
|0 PUB:(DE-HGF)31
|s 1688375652_3072
|2 PUB:(DE-HGF)
|x Other
336 7 _ |a Other
|2 DINI
520 _ _ |a 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).
536 _ _ |a 1412 - Predisposal (POF4-141)
|0 G:(DE-HGF)POF4-1412
|c POF4-141
|f POF IV
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536 _ _ |a Verbundprojekt: Untersuchungen zur SEParation von AMericium aus hochradioaktiven Abfalllösungen (SEPAM), Teilprojekt A (02E11921A)
|0 G:(BMWi)02E11921A
|c 02E11921A
|x 1
700 1 _ |a Weßling, Patrik
|0 P:(DE-HGF)0
|b 1
700 1 _ |a Wilden, Andreas
|0 P:(DE-Juel1)130438
|b 2
|u fzj
700 1 _ |a Modolo, Giuseppe
|0 P:(DE-Juel1)130383
|b 3
|u fzj
909 C O |o oai:juser.fz-juelich.de:1008574
|p VDB
910 1 _ |a Forschungszentrum Jülich
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|6 P:(DE-Juel1)190476
910 1 _ |a Forschungszentrum Jülich
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910 1 _ |a Forschungszentrum Jülich
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|6 P:(DE-Juel1)130383
913 1 _ |a DE-HGF
|b Forschungsbereich Energie
|l Nukleare Entsorgung, Sicherheit und Strahlenforschung (NUSAFE II)
|1 G:(DE-HGF)POF4-140
|0 G:(DE-HGF)POF4-141
|3 G:(DE-HGF)POF4
|2 G:(DE-HGF)POF4-100
|4 G:(DE-HGF)POF
|v Nukleare Entsorgung
|9 G:(DE-HGF)POF4-1412
|x 0
914 1 _ |y 2023
920 _ _ |l yes
920 1 _ |0 I:(DE-Juel1)IEK-6-20101013
|k IEK-6
|l Nukleare Entsorgung
|x 0
980 _ _ |a talk
980 _ _ |a VDB
980 _ _ |a I:(DE-Juel1)IEK-6-20101013
980 _ _ |a UNRESTRICTED
981 _ _ |a I:(DE-Juel1)IFN-2-20101013

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