PLUTONIUM(IV) AND PLUTONIUM(VI) EXTRACTION BY 1-HYDROXY-6-N-OCTYLCARBOXAMIDE-2(1H)-PYRIDINONE*

Autor:	Vadim V. Romanovski, Jide Xu, Darleane C. Hoffman, David J. White, Kenneth N. Raymond
Rok vydání:	1999
Předmět:	Parametric analysis General Chemical Engineering Sodium Radiochemistry chemistry.chemical_element General Chemistry Plutonium chemistry.chemical_compound Water soluble chemistry Ionic strength Nitric acid Solvent extraction Nuclear chemistry
Zdroj:	Solvent Extraction and Ion Exchange. 17:55-71
ISSN:	1532-2262 0736-6299
Popis:	Extraction of Pu(IV) and Pu(VI) from nitric acid media by the promising new extractant l-hydroxy-6-N-octylcarboxamide-2(1H)-pyridinone (octyl-1,2-HOPO) has been investigated. The effects of nitric acid, sodium, aluminum and iron(III) nitrates on extraction have been examined. Octyl-1,2-HOPO exhibits high specificity for Pu(IV) over a wide range of acidity and ionic strength. The affinity of octyl-1,2-HOPO for Pu(VI) is much less than for Pu(IV). However, the extraction of Pu(VI) is possible from acidic as well as from highly salted media. Two water soluble ligands, 1-hydroxyethane-1,1,-diphosphonic acid (HEDPA) and H(2,2)-1,2-HOPO, have been shown to be very effective for back extraction.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::715eb4d5853292b88e9151b7d00bb1bc https://doi.org/10.1080/07360299908934600 Zobrazit plný text záznamu