Sequestration of trivalent americium and lanthanide nitrates with bis-lactam-1,10-phenanthroline ligand in a hydrocarbon solvent.
| Autor: | Karslyan Y; Laboratory of Transuranic Elements, Department of Chemistry, Oregon State University Corvallis OR 97331 USA.; Chemical Sciences Division, Oak Ridge National Laboratory Oak Ridge TN 37831 USA jansonepopos@ornl.gov., Sloop FV; Chemical Sciences Division, Oak Ridge National Laboratory Oak Ridge TN 37831 USA jansonepopos@ornl.gov., Delmau LH; Isotope and Fuel Cycle Technology Division, Oak Ridge National Laboratory Oak Ridge TN 37831 USA., Moyer BA; Chemical Sciences Division, Oak Ridge National Laboratory Oak Ridge TN 37831 USA jansonepopos@ornl.gov., Popovs I; Chemical Sciences Division, Oak Ridge National Laboratory Oak Ridge TN 37831 USA jansonepopos@ornl.gov., Paulenova A; Laboratory of Transuranic Elements, Department of Chemistry, Oregon State University Corvallis OR 97331 USA., Jansone-Popova S; Chemical Sciences Division, Oak Ridge National Laboratory Oak Ridge TN 37831 USA jansonepopos@ornl.gov. |
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| Jazyk: | angličtina |
| Zdroj: | RSC advances [RSC Adv] 2019 Aug 23; Vol. 9 (46), pp. 26537-26541. Date of Electronic Publication: 2019 Aug 23 (Print Publication: 2019). |
| DOI: | 10.1039/c9ra06115k |
| Abstrakt: | Efficient separation of minor actinides and lanthanides from used nuclear fuel could potentially lead to the development of sustainable nuclear fuel cycles. Herein, we report an in-depth study on selectivity and speciation in the extraction of the trivalent minor actinide Am and rare earth metal ions with a pre-organized phenanthroline-based ligand in a hydrocarbon solvent system relevant to nuclear fuel reprocessing. The 1 : 1 and 2 : 1 ligand-to-metal complexes dominate the speciation in the organic solvent over a range of ligand-to-metal concentrations, as evidenced by experimental data and supported by modeling. Competing Interests: The authors declare no competing financial interests. (This journal is © The Royal Society of Chemistry.) |
| Databáze: | MEDLINE |
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