Extraction of U(VI) with N,N′-dimethyl-N,N′-dioctylmalonamide from nitrate media

Extraction of U(VI) with N,N′-dimethyl-N,N′-dioctylmalonamide from nitrate media

The extraction of uranyl nitrate with the novel extractant N,N ′-dimethyl- N,N ′-dioctylmalonamide (DMDOMA) from aqueous sodium nitrate (and nitric acid) was investigated. The extraction mechanism was established and the stoichiometry of the main extracted species confirms to UO 2 (NO 3 ) 2 · DMDOMA...

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Veröffentlicht in:Russian journal of inorganic chemistry 2010-03, Vol.55 (3), p.468-471
Hauptverfasser: Cui, Yu, Hu, Yufen, Zhang, Yanju, Yin, Shaohong, Sun, Guoxin
Format: Artikel
Sprache:eng
Schlagworte:
Chemistry
Chemistry and Materials Science
Inorganic Chemistry
Physical Chemistry of Solutions
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Zusammenfassung:The extraction of uranyl nitrate with the novel extractant N,N ′-dimethyl- N,N ′-dioctylmalonamide (DMDOMA) from aqueous sodium nitrate (and nitric acid) was investigated. The extraction mechanism was established and the stoichiometry of the main extracted species confirms to UO 2 (NO 3 ) 2 · DMDOMA. The IR spectral study was also made of the extracted species. Methyl substituent improves the extraction ability of malonamide for U(VI) compared with that of N,N,N ′, N ′-tertrabutylmalonamide (TBMA).
ISSN:0036-0236
1531-8613
DOI:10.1134/S0036023610030307