Plutonium Precipitation in the MOX Co-deposition Tests for the Oxide Electrowinning Process
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概要
- 論文の詳細を見る
MOX deposition tests were continued in 2002 at RIAR, to increase the Pu concentration in the MOX deposit. The objective was achieved but a significant amount of PuO2 precipitates was found. This phenomenon was investigated by evaluating a hypothetical quantity named “Quasi Equilibrium (Q.E.) concentration” of plutonyls in the melt and their solubility. It was found that the oxygen pressure was too high in the 2002 tests, which made the Q.E. concentration too high and the chlorine pressure was too low, which reduced the solubility of plutonyls in the melt. It may be necessary to increase the oxygen pressure to obtain MOX deposit with Pu concentration higher than 30%, but the pressure must be limited depending on the chlorine pressure to avoid the Pu precipitation.
- 社団法人 日本原子力学会の論文
- 2005-03-25
著者
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Vavilov Sergei
Japan Nuclear Cycle Development Institute
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Namba Takashi
Japan Atomic Power Company
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SATO Fuminori
Japan Atomic Energy Agency
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MYOCHIN Munetaka
Japan Atomic Energy Agency
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Myochin Munetaka
Japan Nuclear Cycle Development Institute
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KOBAYASHI Tsuguyuki
Japan Nuclear Cycle Development Institute
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FUJII Keiji
Japan Atomic Power Company
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Kobayashi Tsuguyuki
Japan Atomic Energy Agency
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Sato F
Kyushu Univ. Fukuoka Jpn
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