ICONE11-36614 INVESTIGATION OF POLONIUM REMOVAL SYSTEMS FOR LEAD-BISMUTH COOLED FAST REACTORS USING A TELLURIUM SURROGATE

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概要

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• The alkaline extraction method is being investigated as a method to remove polonium from a lead-bismuth cooled reactor. Tellurium was used as a surrogate for these preliminary experiments to determine if migration from the lead-bismuth to the molten alkaline (NaOH) could be measured. Experiments provided direct evidence that molten NaOH can effectively remove tellurium from lead or lead-bismuth, as a reduction of three to four orders of magnitude in the tellurium concentration in the metals was observed during the experiments. The experiments also showed a higher than expected concentration of NaOH in the lead or lead-bismuth. Graphite, alumina, nickel and nickel-chromium were found unsatisfactory as crucible materials, while zirconium was found to be compatible at the conditions of interest.

• 一般社団法人日本機械学会の論文

著者

• Loewen Eric

  Ineel

• Buongiorno Jacopo

  INEEL

関連論文

• ICONE11-36614 INVESTIGATION OF POLONIUM REMOVAL SYSTEMS FOR LEAD-BISMUTH COOLED FAST REACTORS USING A TELLURIUM SURROGATE

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