| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
2024 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-5: Kinetic Study on Deoxidation of Molten Copper by the Carbon Monoxide Gas Bubbling |
| Author(s) |
So-Yeong Lee, Ho-Sang Sohn |
| On-Site Speaker (Planned) |
So-Yeong Lee |
| Abstract Scope |
This study investigated the deoxidation rate of molten copper by introducing CO gas through a submerged nozzle. The effect of reaction temperature, CO partial pressure, and total gas flow rate on the reaction rate was examined. The influence of reaction temperature within the study’s range was negligible, while the deoxidation rate increased with higher total gas flow rates and CO partial pressures. Assuming a rapid chemical reaction, mathematical model for the mass transfer rates of CO and CO<sub>2</sub> in the gas boundary layer and O in the liquid boundary layer. The calculated deoxidation rates effectively explained the experimental results. Deoxidation by CO gas bubbling demonstrated mixed control, involving simultaneous mass transfer of CO and CO<sub>2</sub> through the gas boundary layer and O through the liquid boundary layer. In the initial reaction stage, CO mass transfer primarily governed deoxidation, followed by a rapid and dramatic transition to O mass transfer control. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Extraction and Processing, Copper / Nickel / Cobalt, Pyrometallurgy |