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Composition and process for separating cesium ions from an acidic aqueous solution also containing other ions

United States Patent

5,888,398
March 30, 1999
View the Complete Patent at the US Patent & Trademark Office
Argonne National Laboratory - Visit the Technology Development and Commercialization Website
A crown ether cesium ion extractant is disclosed as is its synthesis. The crown ether cesium ion extractant is useful for the selective purification of cesium ions from aqueous acidic media, and more particularly useful for the isolation of radioactive cesium-137 from nuclear waste streams. Processes for isolating cesium ions from aqueous acidic media using the crown ether cesium extractant are disclosed as are processes for recycling the crown ether cesium extractant and processes for recovering cesium from a crown ether cesium extractant solution.
Dietz; Mark L. (Elmhurst, IL), Horwitz; E. Philip (Naperville, IL), Bartsch; Richard A. (Lubbock, TX), Barrans, Jr.; Richard E. (Downers Grove, IL), Rausch; David (Naperville, IL)
ARCH Development Corp. (Chicago, IL)
08/ 789,653
January 27, 1997
GOVERNMENTAL SUPPORT AND RIGHTS This invention was made with government support pursuant to Contract No. W-31-109-ENG-38 with the U.S. Department of Energy. The Government has certain rights in this invention.