| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Real Time Imaging
|
| Presentation Title |
In-situ Observation of Interfacial Phenomena between Magnetite and Matte at High Temperature by a Novel Optical Microscopic Technique |
| Author(s) |
Seung-Hwan Shin, Sakiko Kawanishi, Sohei Sukenaga, Junichi Takahashi, Hiroyuki Shibata |
| On-Site Speaker (Planned) |
Seung-Hwan Shin |
| Abstract Scope |
Generally, stagnation of magnetite at the slag/matte interface can occur in the copper smelting process using a flash furnace. The magnetite inhibits the absorption of the suspended matte in the slag phase into the matte phase, which leads to the copper loss. Therefore, the fast reaction rate between magnetite and matte can greatly contribute to reducing copper loss. In this study, we aim to clarify the reaction behavior by in-situ observation of the high-temperature reaction interface through the magnetite thin film, by focusing on the slight transparency for the visible light of the magnetite. The generated SO2 gas bubbles were observed at the interface, and the gases continued to stagnate even though they were agglomerated. From the beginning of the reaction, it is suggested that the formed gas at the interface can play a significant role to control the reaction rate between magnetite and matte. |
| Proceedings Inclusion? |
Planned: |