2012
DOI: 10.2172/1051572
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Sulfur Hexafluoride Treatment of Used Nuclear Fuel to Enhance Separations

Abstract: SUMMARYReactive Gas Recycling (RGR) technology development has been initiated at Savannah River National Laboratory (SRNL), with a stretch-goal to develop a fully dry recycling technology for Used Nuclear Fuel (UNF). This approach is attractive due to the potential of targeted gas-phase treatment steps to reduce footprint and secondary waste volumes associated with separations relying primarily on traditional technologies, so long as the fluorinators employed in the reaction are recycled for use in the reactor… Show more

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“…Two non-aqueous methods that have been developed for nuclear fuel processing are pyroprocessing [9][10][11][12][13][14] and fluoride volatility. [15][16][17][18][19] Pyroprocessing converts UNF into a metallic form and uses electrorefining in a molten chloride electrolyte to deposit uranium on a stainless steel electrode. The fluoride volatility process fluorinates the elements in UNF by reacting it with fluorine gas at high temperature.…”
mentioning
confidence: 99%
“…Two non-aqueous methods that have been developed for nuclear fuel processing are pyroprocessing [9][10][11][12][13][14] and fluoride volatility. [15][16][17][18][19] Pyroprocessing converts UNF into a metallic form and uses electrorefining in a molten chloride electrolyte to deposit uranium on a stainless steel electrode. The fluoride volatility process fluorinates the elements in UNF by reacting it with fluorine gas at high temperature.…”
mentioning
confidence: 99%