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Electrochemical Separation of Rare Metal Fission Products from High-level Liquid Waste of Spent Nuclear Fuel
| Content Provider | Semantic Scholar |
|---|---|
| Author | Ozawa, Masaki Ikegami, Tetsuo |
| Copyright Year | 2001 |
| Abstract | An electrolytic extraction was studied to separate rare metal fission product (RMFP) Pd, Ru, Rh, Tc, Te and Se from other FP in high level liquid waste. Some of them are long-lived radioactive (LLFP) but potentially strategic elements. Cyclic reaction of metallic cations such as Pd(II) or Fe(II), which originate in the solutions, may act as promoters (i.e., Pdadatom) or mediators, thereby accelerates electrochemical deposition of RuNO(III), Rh(III) and Re(VII) (simulator Tc(VII)). Owing to the phenomena, recovery ratio of more than 99% became possible for RuNO(III) as well as for Pd(II). Based on the state-of-the-art separation chemistry, extended recycling of RMFP is proposed as a new strategy on reprocessing. The separation not only offers alternative material resources to meet expanding demands for catalysts in fuel cell/hydrogen energy systems but is also the first step for transmutation or other selective strategies for radioactive waste management containing LLFP. This paper suggested separating and utilising RMFP/LLFP generated by nuclear fission in a novel vision. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.nea.fr/html/pt/docs/iem/jeju02/session2/SessionII-14.pdf |
| Alternate Webpage(s) | http://www.oecd-nea.org/pt/docs/iem/jeju02/session2/SessionII-14.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
