Combined extraction of cesium and strontium from alkaline nitrate solutions

被引：16

作者：

Delmau, LH ^{[1
]}

Bonnesen, PV ^{[1
]}

Engle, NL ^{[1
]}

Haverlock, TJ ^{[1
]}

Sloop, FV ^{[1
]}

Moyer, BA ^{[1
]}

机构：

[1] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA

来源：

SOLVENT EXTRACTION AND ION EXCHANGE | 2006年 / 24卷 / 02期

关键词：

cesium and strontium extraction; crown ethers; caustic-side solvent extraction solvent; alkaline nitrate media;

D O I：

10.1080/07366290500511290

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The combined extraction of cesium and strontium from caustic wastes can be achieved by adding a crown ether and a carboxylic acid to the Caustic-Side Solvent Extraction (CSSX) solvent. The ligand 4,4'(5')-di(tert-butyl)cyclohexano-18-crown-6 and one of four different carboxylic acids were combined with the components of the CSSX solvent optimized for the extraction of cesium, allowing for the simultaneous extraction of cesium and strontium from alkaline nitrate media simulating alkaline high level wastes present at the U.S. Department of Energy Savannah River Site. Extraction and stripping experiments were conducted independently and exhibited adequate results for mimicking waste simulant processing through batch contacts. The promising results of these batch tests showed that the system could reasonably be tested on actual waste.

引用

页码：197 / 217

页数：21

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