Behavior of ruthenium in fluoride-volatility processes. IV. Ruthenium species appearing in fluorination step.:Ruthenium Species Appearing in Fluorination Step
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概要
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The products of the following three reactions were studied in relation to the repro-cessing of oxide fuels : (i) fluorination of Ru by F<SUB>2</SUB>, (ii) fluorination of Ru by a O<SUB>2</SUB>-F<SUB>2</SUB> mixture, and (iii) secondary process of RuO<SUB>2</SUB>-F<SUB>2</SUB> reaction. The product of Ru-F<SUB>2</SUB> reaction was only RuF<SUB>5</SUB>; the mass spectrum of RuF<SUB>5</SUB> was obtained. Fluorination of Ru by a O<SUB>2</SUB>-F<SUB>2</SUB> mixture resulted in the production of RuF<SUB>5</SUB> (8575%) and RuOF<SUB>4</SUB> (1525%) ; these results are different from those reported by earlier workers. The use of radioactive Ru*O<SUB>2</SUB> traced the behavior of RuOF<SUB>4</SUB> in the apparatus. RuOF<SUB>4</SUB> decomposes on the wall which was not preliminarily coated with ruthenium ; refluorination was effective for removal of the deposit. These results suggest that the fluorination of irradiated oxide fuels volatilizes the ruthe-nium as a mixture of RuOF<SUB>4</SUB>, RuF<SUB>5</SUB>, and a small amount of RuO<SUB>4</SUB>.
- 一般社団法人 日本原子力学会の論文
著者
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SAKURAI Tsutomu
Fluorine Chemistry Laboratory, Japan Atomic Energy Research Institute
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TAKAHASHI Akira
Fluorine Chemistry Laboratory, Japan Atomic Energy Research Institute
関連論文
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- Behavior of ruthenium in fluoride-volatility processes. IV. Ruthenium species appearing in fluorination step.:Ruthenium Species Appearing in Fluorination Step
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