2012 Fiscal Year Final Research Report
Separation and Recovery of Rare-Earth Metals Using Molten Salt Electrolysis and Alloy Electrodes
| Project/Area Number |
23710092
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Environmental technology/Environmental materials
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| Research Institution | Osaka University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2012
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| Keywords | 溶融塩 / 希土類金属 / リサイクル技術 / 電気化学 / 分離 |
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| Research Abstract |
In order to investigate the probability of Tb separation from Nd and Pr, alloy samples were prepared by potentiostatic electrolysis at several potential for 1 h in LiCl-KCl eutectic melts added TbCl3, NdCl3 and PrCl3 at 723 K. From the results of ICP-AES analysis, the mass ratio of Tb/Nd and Tb/Pr in the alloy sample was found to be 56 and 41 at 0.70 V and 0.68-0.69 V, respectively. Furthermore, the mass ratio of Tb/(Nd+Pr) in the alloy sample was found to be 51 at 0.65 V.
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