| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Outline of Final Research Achievements |
Neodymium permanent magnet is utilized for the advanced applications such as the motors of hybrid vehicles. Since its demand is expected to increase, recycling technologies of rare earth elements from the used magnet scraps are strongly required. In this work, a recycling and separation process of neodymium and dysprosium with high speed and separation ratio utilizing mixed molten salts containing two anions was investigated. The selective evaporation of neodymium chloride from chloride-fluoride mixed molten salt was experimentally confirmed under vacuum. The selective coordination of chloride ions to neodymium cations in the chloride-fluoride mixed molten salt was suggested.
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