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Inventors: Kulkarni MG, Karmalkar RN
Patent Title: Cobalt imprinted polymer composition for selective removal of cobalt, process for preparation thereof, and process for removal of cobalt
Publication date: 2006
Publication number: US7001963

Abstract: The present invention provides a polymer composition for the selective removal of cobalt, a process for the preparation thereof and the process for removal of cobalt, using the said polymer composition. More particularly it relates to a cross-linked polymer composition prepared by the molecular imprinting technique. The preparation of the cross linked polymer involves selection of vinyl monomers bearing functional groups that bind to cobalt, formation of a complex of these monomers with cobalt and subsequent polymerization of the complex in presence of a crosslinker. The process for the removal of cobalt comprises treating the solution containing a mixture of cobalt and other metal ions with the polymer under conditions sufficient for cobalt to form a complex with the polymer and separating the polymer from the cobalt depleted solution.
URL: http://v3.espacenet.com/textdoc?DB=EPODOC&IDX=US2005070677&F=0

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