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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium High Temperature Electrochemistry III
Presentation Title Zirconium Management in the Mk-IV Electrorefiner
Author(s) Guy Fredrickson
On-Site Speaker (Planned) Guy Fredrickson
Abstract Scope The Mk-IV electrorefiner has been in service since 1996 to treat approximately 1.4 MT of used sodium-bonded metallic driver fuels from the EBR-II and FFTF sodium-cooled fast reactors. The majority of the treated inventory was U-10Zr binary fuel. The competing interests of i) anodically dissolving a sufficient fraction of the uranium from the anode basket, and ii) cathodically depositing a purified uranium product on the cathode mandrel, has resulted in the accumulation of zirconium metal in the Mk-IV electrorefiner vessel. This presentation will address the historical background of Mk-IV electrorefiner design and operations, the operational choices that resulted in the accumulation of zirconium, the operational consequences of this accumulation, and various approaches to recovering the zirconium from the vessel.
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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