|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||High Temperature Electrochemistry IV
||Development of Superimposing an Alternating Potential over a Direct Potential in Molten Salt Electrorefining
||Suhee Choi, Andrew R. Strianese, Michael F. Simpson
|On-Site Speaker (Planned)
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.