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Process for recovering chaotropic anions from an aqueous solution also containing other ions

United States Patent

March 30, 1999
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 chaotropic anions 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 chaotropic anions are separated contains a poly(ethylene glycol) liquid/liquid biphase-forming amount of a dissolved salt (lyotrope). A solid/liquid phase admixture of separation particles containing bound chaotropic anions in such an aqueous solution 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 Develop. Corp. (Chicago, IL), The Board of Regents for Northern Illinois University (DeKalb, IL)
08/ 478,382
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.