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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium High Temperature Electrochemistry IV
Presentation Title Development of Superimposing an Alternating Potential over a Direct Potential in Molten Salt Electrorefining
Author(s) Suhee Choi, Andrew R. Strianese, Michael F. Simpson
On-Site Speaker (Planned) Suhee Choi
Abstract Scope Molten salts are known to be adaptable electrolytes with wide electrochemical potential windows, enabling both reduction and deposition of most metals. Therefore, molten salts have been applied in various industries such as metal refining and pyroprocessing for recycling spent nuclear fuel. Electrorefining usually is run using only direct current in which either current is controlled or potential is controlled. Improvements in the efficiency of molten salt electrorefining would result in significant cost and time savings. In this study, we investigated a technique to improve the efficiency of electrorefining in molten CaCl2-3.6 wt.% CeCl3. We used two electrochemical methods for electrorefining: applied direct potential (DP) and alternating potential (AP). Also, the effect of frequencies and potential range were studied by the applied various condition. We calculated and compared the efficiencies and yield of DP and AP using the weights and the passed charges.
Proceedings Inclusion? Planned:

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A comparative study of working electrode materials for voltammetry measurements in LiCl–Li2O salts
Advances in solid oxide membrane based electrolysis for solar-grade silicon deposition
An electrochemical route for the synthesis of porous Ti biomedical alloys
Characterization of Uranium Electrodeposits Separated in Molten ClLiK Salt with Varied Applied Overpotentials and Uranium-Cerium compositions
Development of Superimposing an Alternating Potential over a Direct Potential in Molten Salt Electrorefining
Effect of Hydroxide and Oxide Impurities in Electrochemical Processes Using Molten LiCl and CaCl2
Electrochemical Properties of Li on the Liquid Tin Electrode in LiCl-KCl Eutectic
Electrochemical properties of liquid Nd-Bi alloys in LiCl-KCl-NdCl3 electrolyte
Electrochemical Reactions of Oxide Ions with Tungsten in Molten CaCl2
Electrolytic preparation of high entropy alloys in molten salts
Feasibility of potentiometry for monitoring activity of GdCl3 in molten LiCl-KCl salt
First-principles molecular dynamics and CALPHAD modeling of the CaF2-MgF2-SiO2 molten salt system
Fundamental Challenges for the Development of Electrolytic Reduction of Uranium Oxide in Molten LiCl-Li2O
High-speed electrodeposition of textured monolithic lithiated transition metal oxide cathodes for low cost, high energy, and fast charging Li-ion batteries.
High temperature electrochemical process for making battery materials
Interaction Between Solute Species and Metallic Alloying Elements in Molten Chloride Systems
Investigation on preparation of Fe-Al alloys by direct reduction of Fe2O3-Al2O3 powder in CaCl2-NaCl molten salt system
Investigation on Preparation of Fe-Al Alloys by Direct Reduction of Fe2O3-Al2O3 Powder in CaCl2-NaCl Molten Salt System
Liquid Bipolar Electrode for Extraction of Aluminium and PGM Concentrate from Spent Catalysts
Molten Hydroxide Mediated Electrosynthesis of Layered Transition Metal Oxides for Electrochemical Energy Storage
Molten salt-promoted NieFe/Al2O3 catalyst for methane decomposition
New Electrochemical Deoxidation Method of Ti Metal in Molten Salts Containing YCl3
Nickel Alloy Inert Anodes for Molten Carbonates Electrolysis Process
Open Circuit Potential Measurements of Select Noble Metals in LiCl-KCl Eutectic Salt
Optimizing Reaction Selectivity in High Temperature Molten Electrolytes
Relative Performance of Platinum, Iridium, and Ruthenium as Oxygen-Evolving Anodes during the Electrolytic Reduction of Uranium Oxide in Molten LiCl-Li2O
Selective extraction of gold from gold-copper alloy using anodic electrochemical deposition in molten salt electrolyte
Thermodynamic properties of Nd-Bi and Nd-Sn alloys by emf measurements
Validated Modeling of Quartzite Reduction to Solar Silicon by Molten Salt Electrolysis

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