About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Real Time Imaging for Materials Science and Processing
|
| Presentation Title |
Establishment of Evaluation Approach for Foaming Index in Slag/Metal Reactions |
| Author(s) |
Masashi Nakamoto, Ikuru Hatakeyama, Masanori Suzuki, Takeshi Yoshikawa |
| On-Site Speaker (Planned) |
Masashi Nakamoto |
| Abstract Scope |
In steelmaking processes, since slag foaming caused by CO gas evolution during decarburization reactions in the presence of FeO in the slag can significantly affects the stable operation, its control is highly required. Foaming Index characterized by physical properties according to slag composition and generated bubble diameter is commonly used to predict and assess the foam height. However, several studies have reported discrepancies between the estimation and the experimental results on foaming in case of molten steel/slag interfacial reactions, and the certain limitations remain regarding the applicability of Foaming Index. To address the issues, a novel experimental apparatus, enabling the simultaneous observation and quantification of CO generation rate, foam height, and bubble diameter during interfacial reactions between liquid steel and molten slag, was developed in this study. Through this system, the effectiveness and limitations of Foaming Index in accurately characterizing slag foaming behavior under molten steel/slag interfacial reactions were verified. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Extraction and Processing, Iron and Steel, Pyrometallurgy |