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Alkaline earth cation extraction from acid solution

United States Patent

January 28, 2003
View the Complete Patent at the US Patent & Trademark Office
Argonne National Laboratory - Visit the Technology Development and Commercialization Website
An extractant medium for extracting alkaline earth cations from an aqueous acidic sample solution is described as are a method and apparatus for using the same. The separation medium is free of diluent, free-flowing and particulate, and comprises a Crown ether that is a 4,4'(5')[C.sub.4 -C.sub.8 -alkylcyclohexano]18-Crown-6 dispersed on an inert substrate material.
Dietz; Mark (Elmhurst, IL), Horwitz; E. Philip (Naperville, IL)
Arch Development Corp. (Chicago, IL)
09/ 695,126
October 24, 2000
GOVERNMENTAL RIGHTS The U.S. Government has rights in this invention pursuant to Contract No. W-31-109-ENG-38 between the U.S. Department of Energy and the University of Chicago.