| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Rare Metal Extraction & Processing
|
| Presentation Title |
Recovery of Rare Earth Sulfate Hydrates Using Antisolvent Crystallization |
| Author(s) |
Nitin Ramesh Pawar, Michael Svärd, Kerstin Forsberg |
| On-Site Speaker (Planned) |
Kerstin Forsberg |
| Abstract Scope |
Rare earth elements (REE) are recognized as critical raw materials because of their crucial role in vital components of numerous green and high-tech applications. In the present study, antisolvent crystallization of REE sulfate hydrates of industrial interest (Nd (III), Pr (III) and Dy (III)) from sulfuric acid solutions by addition of ethanol has been studied. Crystallization of REEs in the presence Fe (II) and Fe (III) as major impurities along with Al (III), Cu (II), Co (II) and B (III) as trace elements is investigated. Incorporation of impurities and its effect on the growing REE phase is examined. The effect of controlled supersaturation generation rate on the product quality (e.g. purity) and crystal phase are investigated. The solid phases are characterized using optical microscopy, SEM-EDX, powder-XRD and ICP-OES. The findings can offer significant insights to understand and optimize the recovery of REEs from leach liquor in the recycling of magnet waste. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Other, |