Preparation of Acid Deficient Solutions of Uranyl Nitrate and Thorium Nitrate by Steam Denitration
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概要
- 論文の詳細を見る
Acid deficient heavy metal (HM) nitrate solutions are often required in the internal gelation processes for nuclear fuel fabrication. The stoichiometric HM-nitrate solutions are needed in a sol-gel process for fuel fabrication. A method for preparing such nitrate solutions with a controlled molar ratio of nitrate/metal by denitration of acid-excess nitrate solutions was developed. The denitration was conducted by bubbling a nitrate solution with a mixture of steam+Ar. It was found that steam was more effective for the denitration than Ar. The acid deficient uranyl nitrate solution with nitrate/U=1.55 was yielded by steam bubbling, while not by only Ar bubbling. As for thorium nitrate, acid deficient solutions of nitrate/Th ?? 3.1 were obtained by steam bubbling.
- 社団法人 日本原子力学会の論文
- 1996-02-25
著者
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Takahashi Yoshihisa
Department Of Chemistry And Fuel Research Japan Atomic Energy Research Institute
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Yamagishi Shigeru
Department Of Chemistry And Fuel Research Japan Atomic Energy Research Institute
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