| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Drying, Roasting, Calcining and Agglomeration of Feedstocks
|
| Presentation Title |
Optimizing goethite-rich iron ores for direct reduction: Insights from thermogravimetric and microstructural analysis of Australian and Indian iron ores |
| Author(s) |
Soumya Ranjan Mohanty, Isis Rosa Ignacio, Nawshad Haque, Ajay Kumar Shukla, Keith Vining |
| On-Site Speaker (Planned) |
Soumya Ranjan Mohanty |
| Abstract Scope |
The Direct Reduction (DR) process with an electric melter is emerging as a successor to blast furnace ironmaking due to its potential to significantly reduce CO2 emissions. This gas-based method, which can use up to 100% hydrogen, is mainly conducted in shaft furnaces. Iron ore lumps or pellets are reduced by hydrogen and carbon monoxide gases injected from the bottom, producing metallic iron without melting. The quality of iron ore is crucial, as lower-grade ores can degrade in the furnace, reducing productivity. With high-grade ore resources dwindling, the industry is exploring goethite-rich iron ore, common in Australia and India, despite its traditional unsuitability for DRI shafts. This paper characterizes goethitic ores from these regions using thermogravimetry, differential thermal analysis, X-ray diffraction, and scanning electron microscopy to understand their transformation and analyze the morphology of reduced fines, laying the foundation for further research. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Pyrometallurgy, Other |