| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Rare Metal Extraction and Processing
|
| Presentation Title |
Fundamental Study of a Novel Electrolytic Process Using a Cu Cathode in MgF2–LiF–KCl Molten Salt for Producing Mg Metal from MgO |
| Author(s) |
Hyeong-Jun Jeoung, Tae-Hyuk Lee, Kyung-Woo Yi, Jin-Young Lee, Young Min Kim, Toru H. Okabe, Jungshin Kang |
| On-Site Speaker (Planned) |
Hyeong-Jun Jeoung |
| Abstract Scope |
In this study, a fundamental study on the molten salt electrolysis of MgO using a Cu cathode was investigated. The influence of the electrolysis temperature, the concentration of Mg in the Mg alloy, the size of the Cu pellets, and the cathodic current density on the current efficiency was investigated. The reaction between an alumina crucible and Mg alloy contained in the crucible was also analyzed. A current of 1.42–2.15 A was applied to the electrolysis cell using a Cu cathode and a carbon anode at 1043–1173 K for 9.5–27.5 h. The average cell potential and current efficiency were 2.28–2.36 V and 88.1–92.0 %, respectively, under certain conditions. When 13.6–14.2 mass% of Mg was electrodeposited, Mg alloys of Cu2Mg and Cu (Mg) mixtures were obtained. Therefore, the novel electrolytic process is an effective method for Mg metal production. |
| Proceedings Inclusion? |
Planned: |