| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Reduction Technology
|
| Presentation Title |
Pilot Scale Regeneration of Aluminum Fluoride from Pure Bath |
| Author(s) |
Brian Zukas, Driss Mrabet, Keven Turgeon, Charles-Olivier Fournier |
| On-Site Speaker (Planned) |
Brian Zukas |
| Abstract Scope |
Aluminum fluoride is a valuable commodity chemical essential to maintaining process stability during the aluminum electrolysis process. The current commercial process for producing aluminum fluoride is entirely dependent on fluorspar, a critical mineral, as a fluoride source. Alcoa has previously reported the successful laboratory scale use of surplus pure bath as a feedstock for producing aluminum fluoride. This is accomplished through a solid-state reaction between pure bath and aluminum sulfate. The reaction converts the fluoride present in the pure bath to aluminum fluoride and the various cations to their respective sulfates, such as sodium and calcium sulfate. In pursuit of further development of this process, a pilot scale trial was undertaken. This provided an opportunity to run the process for an extended period of time, confirm the performance of the process at a larger scale, and collect data for later use in engineering studies. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Hydrometallurgy, |