| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials Processing Fundamentals
|
| Presentation Title |
Thermodynamic Modeling of Metal Distribution in Electrolytic Extraction |
| Author(s) |
Mary Elizabeth Wagner, Antoine Allanore |
| On-Site Speaker (Planned) |
Mary Elizabeth Wagner |
| Abstract Scope |
Achievement of a high-purity metal product during electrolysis challenges both the primary (e.g. from ore) and secondary (e.g. recycled product) metal extraction industries. Prediction of co-deposition of metallic elements is often limited to standard-state thermodynamics and trial-and-error experimentation. However, in high-temperature processes where both the metal product and the electrolyte can be molten, the thermodynamic behavior of the electrolytic cell as well as the liquid-liquid equilibria thus established will heavily influence which metal, and what purity, is produced from a feed containing multiple metal species. By carefully tailoring the activities of the electrolyte species and cathode products, it is thermodynamically possible to bias the reduction reaction towards one species over another. Therefore, the thermodynamics of both the electrolyte and metal products should be very carefully defined. This talk will discuss the modeling of metal/electrolyte equilibria, and how this approach informs the resulting cathode product compositions. |
| Proceedings Inclusion? |
Planned: |