Nuclear Technology Nuclear Fuel Cycle And Fuel Materials

Engineering-Scale Liquid Cadmium Cathode Experiments

Authors: D. Vaden S. X. Li B. R. Westphal K. B. Davies T. A. Johnson D. M. Pace
Abstract: Recovery of uranium and transuranic (TRU) actinides from spent nuclear fuel by an electrorefining process was investigated as part of the U.S. Department of Energy Advanced Fuel Cycle Initiative. Experiments were performed in a shielded hot cell at the Materials and Fuels Complex at Idaho National Laboratory. The goal of these experiments was to collect, by an electrochemical process, kilogram quantities of uranium and plutonium into what is called a liquid cadmium cathode (LCC). For each experiment, a steel basket loaded with chopped spent nuclear fuel from the Experimental Breeder Reactor II acted as the anode in the electrorefiner. The cathode was a beryllium oxide crucible containing ~26 kg of cadmium metal (the LCC). In the three experiments performed to date, between 1 and 2 kg of heavy metal was collected in the LCC after passing an integrated current between 1.80 and 2.16 MC (500 and 600 A h) from the anode to the cathode. Sample analysis of the processed LCC ingots measured detectable amounts of TRUs and rare earth elements.
Publication Date: 01 May 2008
Report numbers: INL/JOU-07-12517
DOE Contract number: DE-AC07-99ID-13727
Resource Type: Journal Article
Resource Relation: Journal: Nuclear Technology; Journal Volume: 162; Journal Issue: 2
Research Organizations: Idaho National Laboratory (INL)
Sponsoring Organizations: DOE - NE
Country of Publication: United States
Language: English
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