| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Electrometallurgy 2020
|
| Presentation Title |
Development of a Magnesium Metal Production Process Using North Korean Magnesite |
| Author(s) |
Jungshin Kang, Tae-Hyuk Lee, Young Min Kim, Jin-Young Lee |
| On-Site Speaker (Planned) |
Jungshin Kang |
| Abstract Scope |
Conventional and novel magnesium production processes were investigated in order to produce high-purity magnesium metal from North Korean magnesite. In the conventional process, 99.8 % magnesium metal was obtained through the electrolysis of MgCl2 obtained at 973–1040 K using 300 A electrolysis cell with 7.0 V applied, and current efficiency was 83.9 %. This process is proven technology; however, in order to resolve environmental issues such as the generation of chlorine gas, an investigation of the electrolysis of MgO using liquidus metal cathode such as tin for the production of Mg alloys in MgF2-LiF salt at 1083 K at 3.0 V was also conducted. The current efficiency was 75.8–85.6 %. In addition, 99.999 % magnesium metal was obtained from Mg alloys through vacuum distillation at 1200–1300 K. Therefore, this study demonstrates that the use of North Korean magnesite for magnesium production via electrolytic method is feasible. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |