About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Recycling and Environmental Technologies
|
| Presentation Title |
Development of a Flowsheet for the Recovery of High-Purity Manganese Compound from Manganese Residues Generated in Zinc Hydro Smelter |
| Author(s) |
KiranKumar Rokkam, Sheeba Mashruwala |
| On-Site Speaker (Planned) |
|
| Abstract Scope |
In this study, we developed a comprehensive flowsheet designed for treatment of manganese-containing waste to produce a high-purity manganese product. The process involves leaching the waste material in reducing atmosphere by purging SO2 gas, which facilitates the solubilise manganese into the solution at pH <2.0. the leachate is neutralized by adding fresh Mn residue to raise the solution pH ~4.0, which helps to precipitate the iron impurity (Fe).
After neutralization stage, the manganese-rich solution undergoes purification step to remove the process impurities and enhance the purity of manganese sulphate solution. In the final step, manganese gets precipitated from the manganese solution to form a Tri manganese tetroxide (Mn3O4) of exceptional purity and containing 71% manganese (Mn).
The leaching process leaves a residue with valuable lead and silver, which can be recycled for metal recovery. The goal is to create an eco-friendly way to turn waste into useful resources |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Recycling and Secondary Recovery, Process Technology, Hydrometallurgy |