About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Recycling and Environmental Technologies
|
| Presentation Title |
Membrane-based electrochemical separation of Li from Fe-rich acid solution |
| Author(s) |
Angie Fiorella Mayta-Armas, Denise Crocce Romano Espinosa, Amilton Barbosa Botelho Junior |
| On-Site Speaker (Planned) |
Amilton Barbosa Botelho Junior |
| Abstract Scope |
Electrodialysis (ED) has emerged as a promising technique; however, the influence of solution composition remains under investigation, especially the presence of contaminants. This work explores the separation of Li+ from a solution containing Fe2+ and Al3+ ions using a monovalent cation exchange membrane. The performance of ED reactors (two and five compartments) was evaluated at different current densities (25-75 mA/cm2) over time. Results showed that the five-compartment ED configuration achieved the highest Li separation efficiency (19.3%) at 75 mA/cm2, with a current efficiency of 7% and energy consumption of 10 kWh/mol. Lower current density (25 mA/cm2) showed the highest current efficiency (14%) and lowest energy consumption (1.7 kWh/mol), with 12.6% Li separation efficiency. Separation efficiency of Li reached 64% and a purity of 81,3% was obtained after 66h in a five-compartment ED configuration at 25 mA/cm2. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Hydrometallurgy, Electrometallurgy, Recycling and Secondary Recovery |