書誌事項
- タイトル別名
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- Studies on the Anion Exchange Separation of Tetravalent Cerium in Nitric Acid Solution.
説明
Complex formation behavior of Ce (IV) and Ce (III) with NO3- has been examined. Anion exchange characteristics of Ce (IV) at various nitric acid concentration and temperature were measured. Furthermore, separation behavior of Ce (IV) from other light rare earth elements was investigated by anion exchange column. It was found that Ce (IV) forms anionic nitrato-complexes such as Ce (NO3) 5- and Ce (NO3) 62- at nitric acid concentration above 1 mol⋅dm-3 and the nitrato-complexes show relatively strong adsorption on anion exchanger. On the other hand, the adsorbed Ce (IV) was reduced to non-adsorptive Ce (III) through redox reactions with anion exchanger and eluted into the solution, while the elution rate was significantly promoted by temperature. The distribution coefficient of Ce (IV) at 303K, 6 mol⋅dm-3 HNO3 solution onto AR-01 anion exchanger was as high as 100 dm3⋅kg-1. Ce was separated with high purity from a Ce (IV), La (III) and Nd (III) containing nitric acid solution by anion exchange column.
収録刊行物
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- 日本イオン交換学会誌
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日本イオン交換学会誌 13 (1), 2-9, 2002
日本イオン交換学会
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詳細情報 詳細情報について
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- CRID
- 1390282679412219008
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- NII論文ID
- 130004162235
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- COI
- 1:CAS:528:DC%2BD38Xhsl2gu78%3D
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- ISSN
- 18843360
- 0915860X
- http://id.crossref.org/issn/0915860X
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
