Solvent extraction and extraction chromatographic separation of Am3+ and Eu3+ from nitrate medium using Cyanex® 301

被引:52
作者
Bhattacharyya, A. [1 ]
Mohapatra, P. K. [1 ]
Manchanda, V. K. [1 ]
机构
[1] Bhabha Atom Res Ctr, Div Radiochem, Bombay 400085, Maharashtra, India
关键词
lanthanide; actinide; separation; Cyanex (R) 301; solvent extraction; extraction chromatography;
D O I
10.1080/07366290601067713
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The separation behavior of trivalent actinides and lanthanides from aqueous nitrate medium has been investigated using purified commercial Cyanex (R) 301 [bis(2,4,4-trimethylpentyl)dithiophosphinic acid] in toluene by solvent extraction as well as by extraction chromatography. The separation studies were carried out using Am3+ and Eu3+ as the representative actinide and lanthanide ion, respectively. The stoichiometry of the extracted species as determined by the slope-analysis method was Am(A)(3) and Eu(A)(2)(NO3), when HA (Cyanex 301) concentration was < 0.3 M At a higher extractant concentration, the stoichiometry of the extracted Eu complex was Eu(A)(3). Extraction chromatographic studies were carried out in the presence of several complexing agents that tend to influence the separation factor (D-Am/D-Eu) values. The solvent extraction and extraction chromatographic studies have yielded separation-factor values of 4900 and 526, respectively.
引用
收藏
页码:27 / 39
页数:13
相关论文
共 16 条
[1]  
BAES CF, 1976, HYRDOLYSIS CATIONS
[2]  
Hill C., 1998, J ALLOY COMPD, V159, P271
[3]   Separation of americium from europium using liquid membrane impregnated with organodithiophosphinic acid [J].
Hoshi, H ;
Tsuyoshi, A ;
Akiba, K .
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2000, 243 (03) :621-624
[4]   Influence of aggregation on the extraction of trivalent lanthanide and actinide cations by purified Cyanex 272, Cyanex 301, and Cyanex 302 [J].
Jensen, MP ;
Bond, AH .
RADIOCHIMICA ACTA, 2002, 90 (04) :205-209
[5]   Comparison of covalency in the complexes of trivalent actinide and lanthanide cations [J].
Jensen, MP ;
Bond, AH .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (33) :9870-9877
[6]  
KULKARNI SG, 1995, NUCL RAD S KAL IND, P15
[7]   Influence of the purity and irradiation stability of cyanex301 on the separation of trivalent actinides from lanthanides by solvent extraction [J].
Modolo, G ;
Odoj, R .
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 1998, 228 (1-2) :83-88
[8]  
Mohapatra P. K., 1994, THESIS U BOMBAY
[9]  
MUSIKAS C, P NUCAR 95
[10]  
Musikas C, 1985, ACT LANTH SEP P INT, P19