| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Process Metallurgy and Environmental Engineering: An EPD Symposium in Honor of Takashi Nakamura
|
| Presentation Title |
Rare Earth Recycle Process by Molten Salt Electrolysis Using Alloy Diaphragms |
| Author(s) |
Tetsuo Oishi, Miki Yaguchi, Yumi Katasho, Toshiyuki Nohira |
| On-Site Speaker (Planned) |
Tetsuo Oishi |
| Abstract Scope |
The authors have been investigating a new recycling technique for rare earth (RE) elements from Nd-Fe-B magnet wastes. This process consists of 3 steps of a) anodic dissolution of RE from the magnet wastes, b) separation of Nd and Dy using alloy diaphragms which function as bipolar electrodes, and c) individual recovery of Nd and Dy as Nd metal or Fe-Dy alloy, respectively, at each cathode in two separated catholytes. The key of this technique is selective permeation of Nd or Dy through the alloy diaphragm. In this paper, the mechanism of this selective permeation and the experimental results demonstrating the selective permeation of Nd or Dy will be presented. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Electrometallurgy, Recycling and Secondary Recovery, |