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Method for regenerating magnetic polyamine-epichlorohydrin resin

United States Patent

5,652,190
July 29, 1997
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
Magnetic polymer resins capable of efficient removal of actinides and heavy metals from contaminated water are disclosed together with methods for making, using, and regenerating them. The resins comprise polyamine-epichlorohydrin resin beads with ferrites attached to the surfaces of the beads. Markedly improved water decontamination is demonstrated using these magnetic polymer resins of the invention in the presence of a magnetic field, as compared with water decontamination methods employing ordinary ion exchange resins or ferrites taken separately.
Kochen; Robert L. (Boulder, CO), Navratil; James D. (Simi Valley, CA)
The United States of America as represented by the United States (Washington, DC)
08/ 454,770
May 31, 1995
The United States Government has rights in this invention pursuant to Contract No. DE-AC04-76DP03533 between the United states Department of Energy and Rockwell International Corporation.