About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Recycling and Environmental Technologies
|
| Presentation Title |
Innovative Electrowinning Process to Recover Silver from Ethaline-Based Electrolytes |
| Author(s) |
Goril Jahrsengene, Siri Marie Skaftun, Thomas Park Simonsen, Karen Sende Osen, Ana Maria Martinez |
| On-Site Speaker (Planned) |
Goril Jahrsengene |
| Abstract Scope |
An important source of renewable energy is solar energy, and the estimated future growth in this sector will require large amounts of materials and effective recycling processes. Given optimized pre-processing, electrowinning can be used to recover metallic Ag from end-of-life c-Si PVs. In this work, the deep eutectic solvent (DES) ethaline was used as electrolyte to effectively produce metallic Ag from a solution prepared by leaching of Ag crystals using FeCl3·6H2O as oxidant. The 10 L electrowinning cell was successfully operated at 50 °C for up to 46 hours, varying electrolyte flows, current densities, cathode geometry, and diaphragm material to effectively separate the anode reaction. High quality metallic Ag was successfully produced at the cathode from an electrolyte containing 0.1 M Ag ions at a cathodic current density of 7 A/cm2. Simultaneously the Fe(III) was recovered at the anode to be reused in further leaching steps. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Electrometallurgy, Recycling and Secondary Recovery, Sustainability |