| Budget Amount *help |
¥19,500,000 (Direct Cost: ¥15,000,000、Indirect Cost: ¥4,500,000)
Fiscal Year 2015: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2014: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2013: ¥13,910,000 (Direct Cost: ¥10,700,000、Indirect Cost: ¥3,210,000)
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| Outline of Final Research Achievements |
We proposed new separation and recovery process for rare earth metals using molten salt electrolysis and liquid metals. The alloy samples were prepared by potentiostatic electrolysis using liquid Bi, Sn and Zn electrodes in molten LiCl-KCl added DyCl3 and NdCl3 at 723 K. The formation of Dy-Nd-Zn, Dy-Nd-Sn, Dy-Nd-Bi alloys were confirmed. The atomic ratios of Dy/Nd in Bi, Zn alloy samples were about 2. Rare earth and Fe could be separated by controlling the area of liquid electrodes or applied potential. Dy and Nd of Nd-Fe-B magnets in liquid Sn electrodes could be dissolved into the molten salt as RE ions.
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