Diamides as Actinide Extractants for Various Waste Treatments
| Autor: | L. Nigond, Christine Cuillerdier, Claude Musikas |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
Chemistry
Process Chemistry and Technology General Chemical Engineering Inorganic chemistry Radiochemistry Oxalic acid Extraction (chemistry) Radioactive waste chemistry.chemical_element Filtration and Separation Americium General Chemistry Actinide Chloride Plutonium chemistry.chemical_compound Nitric acid medicine medicine.drug |
| Zdroj: | Separation Science and Technology. 28:155-175 |
| ISSN: | 1520-5754 0149-6395 |
| DOI: | 10.1080/01496399308019484 |
| Popis: | Substituted propanediamides were studied at Fontenay-aux-Roses for the declassification of nuclear liquid wastes by extraction of all the actinides. Their synthesis has been improved. By optimization of the formula, it is possible to use aliphatic diluents without third-phase formation in contact with nitric acid at 20°C. Addition of oxalic acid allows separation of iron and zirconium from americium and plutonium. In selected conditions, it appears that americium extraction is faster than iron extraction, which could lead to practical applications. Recent studies have shown that diamides can be used to remove the actinides from waste solutions in chloride medium coming from defense facilities. The current knowledge and the projects for using diamides as actinide extractants will be reviewed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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