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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium High Temperature Electrochemistry III
Presentation Title Electrochemical Deposition of Barium into Liquid Bismuth from BaCl2-LiCl-CaCl2-NaCl Electrolyte
Author(s) Hojong Kim, Nathan Smith, Timothy Lichtenstein, Kuldeep Kumar
On-Site Speaker (Planned) Hojong Kim
Abstract Scope Using liquid bismuth metal that possesses strong chemical interactions with barium, we demonstrate that electrochemical separation of barium into a liquid bismuth electrode is possible from BaCl2-LiCl-CaCl2-NaCl (16-29-35-20 mol%) electrolyte at 600 C. While the standard emf analysis suggests Na as the first species to deposit in this electrolyte, barium was found to be the first species to be reduced into the bismuth electrode followed by Ca. The exceptional barium deposition was ascribed to extremely low activity values of barium in bismuth (as low as 10-15), shifting the deposition potential of barium to the most positive potentials and resulting in barium deposition into bismuth. By exploiting the chemical interactions between barium and bismuth, this study suggests that liquid bismuth can potentially be employed in separating out alkali/alkaline-earth fission products such as Ba, Sr, and Cs from the molten salt electrolytes in the pyrochemical processes for used nuclear fuels recycling.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Effects of Oxide Precursor Preparation Parameters on the Electrochemical Reduction of Tantalum Pentoxide in Calcium Chloride Melt
Electrochemical and Thermodynamic Properties of Gadolinium Chloride in LiCl-KCl Eutectic Salt
Electrochemical Behavior of Sn/SnCl2 Cathode in Na | NaCl-AlCl3-SnCl2 | Sn Cell
Electrochemical Deposition of Barium into Liquid Bismuth from BaCl2-LiCl-CaCl2-NaCl Electrolyte
Electrochemical Synthesis of TaC in Molten Salt
Electrochemical Techniques for Nuclear Safeguards in Molten Salt
Electrochemistry in Molten 2LiF-BeF2 Salt for the Fluoride Salt-Cooled High Temperature Reactor Applications
Impurity Removal from Titanium Oxycarbide
Initial Operation of Kg-Scale Electrolytic Reduction and Salt Distillation Equipment for the Pyroprocessing of Uranium Oxide in a Hot Cell
Molten Flux Design for Solid Oxide Membrane Based Electrolysis of Si from Silica
Optimized Voltammetry Methods for Measuring Concentration of Multiple Rare Earths and Actinides in Molten LiCl-KCl
Thermal Imaging Furnace Technique for Ultra-high Temperature Electrochemical Measurements
Thermochemical Properties of Barium-Bismuth Alloys Determined by Emf Measurements
Thorium and Uranium Electrodeposition from Molten LiCl-KCl onto Alpha Spectroscopy Semiconductor Detector Surface
Zirconium Management in the Mk-IV Electrorefiner

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