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Process for recovering pertechnetate ions from an aqueous solution also containing other ions

United States Patent

5,603,834
February 18, 1997
View the Complete Patent at the US Patent & Trademark Office
Argonne National Laboratory - Visit the Technology Development and Commercialization Website
A solid/liquid process for the separation and recovery of TcO.sub.4.sup.-1 ions from an aqueous solution is disclosed. The solid support comprises separation particles having surface-bonded poly(ethylene glycol) groups; whereas the aqueous solution from which the TcO.sub.4.sup.-1 ions are separated contains a poly(ethylene glycol) liquid/liquid biphase-forming amount of a dissolved salt. A solid/liquid phase admixture of separation particles containing bound TcO.sub.4.sup.-1 ions in such an aqueous solution that is free from MoO.sub.4.sup.-2 ions is also contemplated, as is a chromatography apparatus containing that solid/liquid phase admixture.
Rogers; Robin (DeKalb, IL), Horwitz; E. Philip (Naperville, IL), Bond; Andrew H. (Tallahassee, FL)
Arch Development Corp. (Chicago, IL), The Board of Regents for Northern Illinois University (DeKalb, IL)
08/ 477,330
June 7, 1995
GOVERNMENTAL SUPPORT AND RIGHTS This invention was made with government support pursuant to Contract No. W-31-109-ENG-38 between the U.S. Department of Energy and The University of Chicago, contractor for Argonne National Laboratory. The Government has certain rights in this invention.