UPTAKE OF ACTINIDES AND LANTHANIDES FROM NITRIC-ACID BY DIHEXYL-N,N-DIETHYLCARBAMOYLMETHYLPHOSPHONATE ADSORBED ON CHROMOSORB

被引：20
|
作者：
MATHUR, JN
MURALI, MS
NATARAJAN, PR
机构：
[1] Radiochemistry Division, Bhabha Atomic Research Centre, Bombay
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES | 1992年 / 162卷 / 01期
关键词：
D O I：
10.1007/BF02039938
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Batchwise uptake of Am(III), Pm(III), Eu(III), U(VI) and Pu(IV) by dihexyl-N.N-diethylcarbamoylmethylphosphonate (CMP) adsorbed on chromosorb (CAC) al nitric acid concentrations between 0.01 to 6.0M has been studied. The difference between the uptake behavior of Pu(IV) as compared to other actinides and lanthanides is discussed. The Am(III) and U(VI) species taken upon CAC were found to be Am(NO3)3 . 3CMP and UO2(NO3)2 . 2CMP, respectively. The equilibrium constants for the formation of these species have been evaluated and compared with those of similar species formed in liquid-liquid extraction. Batchwise loading of Pm(III) on CAC from 3.0M HNO3 has also been studied.
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页码：171 / 178
页数：8
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