Role of organic diluents on Am(III) extraction and transport behaviour using N,N,N′,N′-tetraoctyl-3-oxapentanediamide as the extractant

被引：25

作者：

Panja, S. ^{[2
]}

Mohapatra, P. K. ^{[1
]}

Tripathi, S. C. ^{[2
]}

Gandhi, P. M. ^{[2
]}

Janardan, P. ^{[2
]}

机构：

[1] Bhabha Atom Res Ctr, Div Radiochem, Bombay 400085, Maharashtra, India

[2] Bhabha Atom Res Ctr, Fuel Reproc Div, Bombay 400085, Maharashtra, India

来源：

JOURNAL OF MEMBRANE SCIENCE | 2012年 / 403卷

关键词：

Diluent; TODGA; Americium; Supported liquid membrane; Diffusion coefficient; SUPPORTED LIQUID-MEMBRANE; PUREX RAFFINATE; SOLVENT-EXTRACTION; MINOR ACTINIDES; NITRIC-ACID; N-DODECANE; METAL-IONS; TODGA; CARRIER; WASTE;

D O I：

10.1016/j.memsci.2012.02.022

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Diluent effect on the solvent extraction and membrane transport properties of Am(III) using TODGA (N,N,N',N'-tetraoctyl-3-oxapentanediamide) as extractant/carrier have been investigated in detail. The diluents studied were n-dodecane, 1-octanol, tert-butyl benzene, kerosene, toluene, carbon tetra chloride, chloroform, 1,2-dichloroethane, and nitrobenzene. The distribution ratio values of Am(III) with TODGA as the extractant were correlated with various diluent parameters. The nature of the extracted species formed was also determined for the different diluents. Supported liquid membrane (SLM) transport studies were carried out and the ease of Am transport followed the trend: toluene > n-dodecane > kerosene > 1-octanol > tert-butyl benzene similar to CCl4 > CHCl3. Effect of membrane pore size on Am(III) transport for each of the diluents have been evaluated. Membrane diffusion coefficient values have been calculated using Wilke-Chang equation and compared with those determined experimentally using a t(lag) method. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：71 / 77

页数：7

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