About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Fundamentals of Sustainable Metallurgy and Processing of Materials
|
| Presentation Title |
Carbosulfidation of the Mixture of Barium Sulfate and Lanthanum Oxide |
| Author(s) |
Gen Kamimura, Matthew Michalek, Antoine Allanore |
| On-Site Speaker (Planned) |
Gen Kamimura |
| Abstract Scope |
There is a current incentive to explore alternative low CO2-emission pathways for steel production. Our group has been developing a novel steelmaking method based on molten sulfide electrolysis. This approach involves the sulfidation of iron oxide to produce iron sulfide, which is subsequently melted and electrolyzed to extract metallic iron without direct CO2 emissions. Our studies have demonstrated that a barium sulfide (BaS)–lanthanum sulfide (La2S3) mixture is an effective supporting electrolyte for molten sulfide electrolysis. The current work investigated the carbosulfidation of barium sulfate (BaSO4) and lanthanum oxide (La2O3) using sulfur gas in the presence of carbon for the electrolyte synthesis. Gas analysis during the reaction provided insights into the kinetics of the carbosulfidation process. The findings will contribute to the development of a scalable, sustainable, and low-carbon steelmaking technology. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Pyrometallurgy, Iron and Steel, |