| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
New Directions in Mineral Processing, Extractive Metallurgy, Recycling and Waste Minimization: An EPD Symposium in Honor of Patrick R. Taylor
|
| Presentation Title |
A Kinetic Description of Physico-chemical Processes Taking Place in the Burden of HCFeMn Submerged Arc Furnaces |
| Author(s) |
Ainur Nigmetova, Haoxue Han, Astrid Hecquet, Bertil Farjaudon, Gilles Nussbaum |
| On-Site Speaker (Planned) |
Ainur Nigmetova |
| Abstract Scope |
The pre-reduction reactions of high Mn-oxides in Comilog and Nchwaning manganese ores, have long been investigated because of their potential to reduce both the specific energy and coke consumptions of FeMn alloys. However, the performances of most industrial furnaces do not beneficiate from fully completed pre-reduction reactions. In this context, a new incremental approach, using experimental and numerical tool, is developed to investigate the mechanisms involved from the micro-scale to the industrial scale using experimental tools from the laboratory set-ups to pilot equipment. The pre-reduction optimization study was started at the micro-scale. Results of the lab-scale trials on both ores at different temperatures, CO/CO2 ratios and the numerical model simulating the kinetics and heat transfer of the pre-reduction reactions will be presented. The main kinetic parameters have been identified from the lab-scale trials using the numerical model, compared to the literature, and interpreted to explain physico-chemical behavior of pre-reduction. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Pyrometallurgy, Modeling and Simulation, Environmental Effects |