Selective recovery of uranium(VI) from aqueous acid solutions using micellar ultrafiltration

被引:22
作者
Pramauro, E [1 ]
Prevot, AB [1 ]
Zelano, V [1 ]
Gulmini, M [1 ]
Viscardi, G [1 ]
机构
[1] UNIV TURIN,DIPARTIMENTO CHIM GEN & ORGAN APPLICATA,I-10125 TURIN,ITALY
关键词
chelating micelles; micelles ultrafiltration; uranyl recovery;
D O I
10.1039/an9962101401
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Preconcentration and removal of uranyl ions from aqueous solutions mere achieved by using micellar-enhanced ultrafiltration with complexing micellar aggregates composed of Triton X-100 and different hydrophobic ligands, Derivatives of 4-aminosalicylic acid (PAS) and of 1-(2-pyridylazo)-2-naphthol (PAN) having tuned alkyl chains were used as suitable chelating agents, The selective recovery of uranyl from acid samples containing also Sr-II and Cd-II is possible using the multi-step ultrafiltration approach with the PAN derivatives, whereas effective uranyl retention can be obtained with salicylates only in neutral to basic media.
引用
收藏
页码:1401 / 1405
页数:5
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