% 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”. @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 = {De 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}, }