Authors: Xin Wu Yupeng Liu Shaowen Hu Taiwei Chu
Publish Date: 2015/06/20
Volume: 307, Issue: 1, Pages: 161-167
Abstract
Interactions of uranyl with an amide ligand NNN′N′tetrabutylsuccinamide TBSA in ionic liquid BmimNTf2 was investigated UO2TBSA32+ is formed from uranyl and excess TBSA with two TBSA ligands in bidentate mode and the third in monodentate mode The efficiency of uranyl extraction by TBSA in BmimNTf2 is dependent on the aqueous nitric acid concentrations At low HNO3 concentration as 001 mol·L−1 the distribution ratio D is over 20 times larger than that in common organic solvents and the extracted complex is UO2TBSA32+ The D value decreases drastically with increase of HNO3 concentration
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