| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Rare Metal Extraction & Processing
|
| Presentation Title |
Separation of Critical Metals Using Supported Liquid Membranes PTFE-Cyanex 272 |
| Author(s) |
Amilton Barbosa Botelho Junior, Ana Carolina Miyashita, Jorge Alberto Soares Tenório, Denise Crocce Romano Espinosa |
| On-Site Speaker (Planned) |
Amilton Barbosa Botelho Junior |
| Abstract Scope |
Most common separation techniques in hydrometallurgical process are ion exchange resins, solvent extraction, and precipitation. However, novel technologies have been developed aiming greener technologies and lower energy consumption and greenhouse gas emissions. Membrane technologies are being studies as a potential separation technique in hydrometallurgical processes including ultrafiltration, nanofiltration, and electrodialysis. Supported liquid membranes have been studying due to their selectivity and easy synthesis supported with organic extractants. This study aimed the evaluation of Co separation from Ni through a membrane supported with phosphinic acid extractant. Experiments were carried out with two chambers at 25°C, where the feed chamber contained the metals in sulfuric media and receiving contained water with pH adjusted with sulfuric acid. The membrane was prepared with PTFE and Cyanex 272 10% diluted in kerosene. The effect of membrane preparation and acid solution in receiving were evaluated. Results demonstrated the Ni/Co separation factor reached 4 without the use of concentrated acid for stripping. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Sustainability, Hydrometallurgy, Extraction and Processing |