| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Rare Metal Extraction & Processing
|
| Presentation Title |
Recycling of Rare Earth Elements (REEs) from Scrap Nd-Fe-B Magnets |
| Author(s) |
Nityanand Singh, Pankaj Kumar Choubey, Rekha Panda, Rajesh Kumar Jyothi, Manis Kumar Jha |
| On-Site Speaker (Planned) |
Nityanand Singh |
| Abstract Scope |
Nd-Fe-B magnets find wide range of applications due to its high magnetic properties. At its end-of-life, huge quantity of scrap Nd-Fe-B magnets are generated, which are promising alternative resource for rare-earth elements (REEs). Recycling of scrap Nd-Fe-B magnets will mitigate the demand supply gap of REEs. Thus, the present paper reports development of feasible hydrometallurgical flow-sheet to recover REEs from Nd-Fe-B magnets. The process consists of roasting of magnets with 20% NaCl at 750°C for 2 h followed by water leaching of the roasted mass at 75°C for 60 min to produce REEs containing leach liquor. About 99.9% REEs was recovered and the left residue contained Fe, which was further calcined at 600°C for 2 h to get red oxide pigment. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Extraction and Processing, Recycling and Secondary Recovery, Hydrometallurgy |