Chelating ion exchange resins specific for the actinides
Conference
·
OSTI ID:126613
- Lawrence Livermore National Lab., CA (United States)
The separation of metal cations is a fundamental chemical process, the selectivity of which is a primary limitation in many technologies. In particular, the treatment of nuclear waste at the Department of Energy`s Hanford, WA site presents many challenging separation problems. One of these is the separation of parts- per-million concentrations of the generally long-lived actinide isotopes from larger volumes of non-radioactive chemical waste. Successful separations of the actinides require ligands that will strongly, and selectively, bind actinide ions. Molecular versions of such ligands have been studied in a different part of this research program for many years. In particular, molecular hydroxypyridinones have proven effective for chelating actinides as in vivo decorporation agents. A similar approach has been taken in the development of ion exchange separation techniques. A series of solid-supported chelating resins employing the hydroxypyridinone functionality have been synthesized and characterized. These results will be discussed in terms of their general environmental and waste remediation applications.
- OSTI ID:
- 126613
- Report Number(s):
- CONF-950402--
- Country of Publication:
- United States
- Language:
- English
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