Synthesis and evaluation of polyallylamine chelating polymers for the selective removal of metal ions
- New Mexico State Univ., Las Cruces, NM (United States); and others
A major goal of our research program is to develop polymer supported ion specific extraction systems for the removal of actinides and other hazardous metal ions from wastewaters. The advantage of the use of water soluble polymers in metal ion separation processes is that due to the homogeneity of the system, they are expected to provide more rapid exchange kinetics with the target metal ion than ion exchange and chelating resins. Subsequently, the soluble polymer-metal ion complexes can be separated or concentrated using ultrafiltration membrane units. A number of water soluble chelating polymers have been synthesized in our laboratory by functionalization of commercially available polyallylamine with various ligand moieties such as hydroxamates and carboxylates. The ability of these polymers to complex with representative metal ions to give soluble complexes under different pH conditions has been examined. Also the use of these water soluble polymers to remove a number of target metal ions from solutions using ultrafiltration as the mode of metal ion separation will be discussed.
- OSTI ID:
- 370531
- Report Number(s):
- CONF-960376--
- Country of Publication:
- United States
- Language:
- English
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