| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Furnace Tapping 2022
|
| Presentation Title |
The Interaction of Slag and Carbon on the Electrical Properties |
| Author(s) |
Gerrit Ralf Surup, Kseniia Koseniuk, Merete Tangstad |
| On-Site Speaker (Planned) |
Gerrit Ralf Surup |
| Abstract Scope |
Renewable reducing agents are intended to replace significant amounts of fossil-fuel based reductants in submerged arc furnaces in the upcoming decades. In this study, the interaction of a manganese slag to a charcoal, a semi-coke and a metallurgical coke was investigated. In a first series, the viscosity and wettability of the slag were measured. The electrical resistivity of carbon material was measured by 4-point measurement. It was shown that the contact resistant between the carbon materials significantly decreased by void and pore filling. The results were validated by measuring the bulk resistivity of carbon-slag blended bed. While the slag is nonconductive below melting temperature, electrical current is highly conducted in the molten phase. The higher electrical resistivity of charcoal compared to the fossil fuel-based reductants improve the local heat generation in the carbon bed, concomitant reducing the viscosity of the slag, which may be beneficial for tapping of the furnace. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Pyrometallurgy, Sustainability, Composites |