About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Rare Metal Extraction & Processing
|
| Presentation Title |
Leaching Kinetics with modelling for the dissolution of Ni, Sn and Fe from scrap alloy |
| Author(s) |
Ankur Sharma, Karina Rani, Subrat Shekhar, Manis Kumar Jha |
| On-Site Speaker (Planned) |
Ankur Sharma |
| Abstract Scope |
Recovery of critical metals such as nickel (Ni), tin (Sn), and iron (Fe) from secondary resources is essential due to metal scarcity and environmental concerns. Present studies explore leaching behaviour and kinetic modelling of Ni–Sn–Fe alloy powders (Ni: 25–30%, Sn: 12–17%, Fe: 5–10%) generated as industrial waste. Leaching studies were made varying experimental parameters i.e. acid concentration, oxidant volume, agitation speed, pulp density, temperature and time. Dissolution of metals was obtained ~99.99% using 20–25% HCl (v/v) and 10% H₂O₂ (v/v) at 75–100 °C for 2–3 hours, with 100 g/L pulp density and 400 rpm agitation. Recovered metals were obtained as sheets, salts and powders using electrowinning, precipitation and cementation techniques, respectively. Kinetics of the leaching was fitted well with proven model and validated with SEM-EDS results. The results of the studies will be useful for process development after scale-up and pilot trials. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Hydrometallurgy, Recycling and Secondary Recovery, Sustainability |