| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Electrometallurgy 2020
|
| Presentation Title |
M-58: Electrochemical Behavior of Fe2O3 in Electro-deoxygenation in NaCl-CaCl2 Molten Salt System |
| Author(s) |
Lei Jia, Hui Li, Zongying Cai, Jinglong Liang |
| On-Site Speaker (Planned) |
Hui Li |
| Abstract Scope |
In the molten NaCl-CaCl2 co-crystal, the composition and morphology of the product were obtained by using a solid agglomerate of Fe2O3 particles as a raw material and a graphite rod as an anode at 800 °C under cyclic temperature voltammetry and combined with constant potential electrolysis at different times. XRD and SEM analysis showed that the reduction mechanism of solid Fe2O3 includes (1) chemical formation of dicalcium ferrite (Ca2Fe2O5); (2) electrocalcification of ferric acid to metal iron Ca2Fe2O5→Fe3O4→FeO→Fe, and finally Electrolysis was carried out for 5 h at a voltage of 2.5 V to prepare a metal iron having an oxygen content of 1.29%, and the electrolysis efficiency was 97.6%. The electrolysis product iron appears as interconnected micron-sized network particles. These studies provide theoretical support for the direct electroreduction of Fe2O3 particles to prepare metallic iron. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |