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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

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A 3-D Numerical Model to Predict Low Temperature Aluminum Electrochemical Process Using Ionic Liquids as Electrolytes at Different Boundary Conditions
A Key Role for Electrometallurgy in Climate Change Mitigation
Capital Cost Estimation for Electrochemical Processes
Development of a Magnesium Metal Production Process Using North Korean Magnesite
Development of a Novel Magnesium Metal Production Process by Electrolysis of Magnesium Oxide Using a Tin Metal Cathode
Effective Copper Diffusion Coefficients in CuSO4 – H2SO4 Electrowinning Electrolytes
Electrolytic Extraction of Liquid Copper and Iron from Chalcopyrite Ore
Enhanced Aluminum Electrorefining Process from Aluminum Alloy Scraps via Surface Engineering
Future Prospects for Copper Leaching, Solvent Extraction and Electrowinning Technology
M-56 (Digital): Electron Beam Refinery and Purification in Newly Constructed Production Units with Gas Discharged Electron Beam Guns
M-58: Electrochemical Behavior of Fe2O3 in Electro-deoxygenation in NaCl-CaCl2 Molten Salt System
M-59: Reduction Mechanism of Metal Cobalt from Cathode Material of Waste Lithium Cobalt Oxide Battery
Modeling Nickel and Zinc Electrowinning Based on Ion Mass Transport and Electrode Reaction Kinetics
Study on High-temperature Liquid Lithium Battery with LiI-KI Electrolyte
The Electrochemical Conversion of Chalcopyrite to Less Refractory Mineral Phases for Hydrometallurgical Processing
Theories of Electrodeposition, Beings-of-reason, and Reality

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