Combined extraction of cesium and strontium from alkaline nitrate solutions

Lætitia H. Delmau; Peter V. Bonnesen; Nancy L. Engle; Tamara J. Haverlock; Frederick V. Sloop; Bruce A. Moyer

doi:10.1080/07366290500511290

Combined extraction of cesium and strontium from alkaline nitrate solutions

Lætitia H. Delmau, Peter V. Bonnesen, Nancy L. Engle, Tamara J. Haverlock, Frederick V. Sloop, Bruce A. Moyer

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

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) olvent.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.

Original language	English
Pages (from-to)	197-217
Number of pages	21
Journal	Solvent Extraction and Ion Exchange
Volume	24
Issue number	2
DOIs	https://doi.org/10.1080/07366290500511290
State	Published - 2006

Funding

This research was sponsored by the Environmental Management Science Program of the Offices of Science and Environmental Management, U.S. Department of Energy, under contract number DE-AC05-00OR22725 with Oak Ridge National Laboratory, managed by UT-Battelle, LLC.

Funders	Funder number
UT-Battelle
U.S. Department of Energy	DE-AC05-00OR22725
Oak Ridge National Laboratory

Keywords

Alkaline nitrate media
Caustic-side solvent extraction solvent
Cesium and strontium extraction
Crown ethers

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10.1080/07366290500511290

Cite this

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abstract = "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) olvent.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.",

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AU - Bonnesen, Peter V.

AU - Engle, Nancy L.

AU - Haverlock, Tamara J.

AU - Sloop, Frederick V.

AU - Moyer, Bruce A.

PY - 2006

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Combined extraction of cesium and strontium from alkaline nitrate solutions

Abstract

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Keywords

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