| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 가을 (10/30 ~ 11/01, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
23권 2호 |
| 발표분야 |
포스터_화학공정 |
| 제목 |
Leaching of neodymium and dysprosium from permanent magnets |
| 초록 |
As the raw material for permanent magnets (Nd–Fe–B), Neodymium(Nd) is in great demand because of its excellent magnetic properties and functions, compact shapes, and light weight; however, the abundance of neodymium in natural ores is limited. The end-life Nd–Fe–B magnets are important secondary sources of Nd(III). Dysprosium (Dy) is an additive in the Nd–Fe–B magnets to improve their high-temperature performance and increase their intrinsic coercivity. Therefore, recovery of Nd(III) and Dy(III) from end-life Nd–Fe–B magnets is important from both economic and environmental perspectives. In this study, leaching of Neodymium and dysprosium was carried out by using nitric acid solution. The leaching parameters such as concentration of lixivant, reaction temperature, pulp density, which may affect the dissolution efficiency of Nd and Dy were investigated. The optimum leaching conditions to dissolve completely were obtained. |
| 저자 |
김태영1, 노봉조2, 박희정1, 이민우1, Sun Pan-Pan1, 조성용1
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| 소속 |
1전남대, 2LG 이노텍 |
| 키워드 |
Neodymium; Dysprosium; leaching; magnet; HNO3
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| E-Mail |
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