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Thiacrown polymers for removal of mercury from waste streams

United States Patent

February 24, 2004
View the Complete Patent at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
Thiacrown polymers immobilized to a polystyrene-divinylbenzene matrix react with Hg.sup.2+ under a variety of conditions to efficiently and selectively remove Hg.sup.2+ ions from acidic aqueous solutions, even in the presence of a variety of other metal ions. The mercury can be recovered and the polymer regenerated. This mercury removal method has utility in the treatment of industrial wastewater, where a selective and cost-effective removal process is required.
Baumann; Theodore F. (Tracy, CA), Reynolds; John G. (San Ramon, CA), Fox; Glenn A. (Livermore, CA)
Thew Regents of the University of California (Oakland, CA)
10/ 061,927
February 1, 2002
The U.S. Government has rights in this invention pursuant to Contract No. W-7405-ENG-48 between the U.S. Department of Energy and the University of California for the operation of Lawrence Livermore National Laboratory.