Extraction and electrochemical behavior of fission palladium in room-temperature ionic liquid

被引:14
作者
Kumaresan, R. [1 ]
Jain, Rakesh [2 ]
Venkatesan, K. A. [1 ]
Antony, M. P. [1 ]
Bhanage, B. M. [2 ]
机构
[1] Indira Gandhi Ctr Atom Res, Div Fuel Chem, Kalpakkam 603102, Tamil Nadu, India
[2] Inst Chem Technol, Dept Chem, Bombay 400019, Maharashtra, India
关键词
Fission palladium; Extraction; Ionic liquid; Tri-n-octylmethylammonium nitrate; Electrodeposition; RECOVERY; ACID; PLATINOIDS; LIGAND;
D O I
10.1007/s10967-014-3734-5
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The extraction behavior of palladium in a solution of tri-n-octylmethylammonium nitrate (TOMAN) and 1,3-diisopropyl benzene (DIPB) in presence of tri-n-butyl phosphate as phase modifier was studied. The distribution ratio of palladium (D-Pd(II)) increased with increase in the concentration of nitric acid, reached a maximum at 1 M in nitric acid, followed by decrease in D-Pd(II) values. The cyclic voltammogram of the palladium in extracted organic phase (0.5 M TOMAN + 0.1 M TBP/DIPB) showed a surge in cathode current at -0.5 V was due to the palladium deposition. The results confirmed the feasibility of using the organic phase for electrodeposition of palladium directly from extracted phase.
引用
收藏
页码:1047 / 1052
页数:6
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