Recovery of Uranium from Seawater: Modified Polyacrylonitrile Fibers as Selective Extractants
- City Univ. (CUNY), NY (United States)
A new bifunctional fiber has been prepared and found to have a significant loading capacity of uranium from real seawater. The fiber support is polyacrylonitrile and bifunctionality is provided by amidoxime and either diethylenetriamine (DETA) or ethylenediamine (EDA) ligands. The key feature is adjusting the hydrophilic /lipophilic balance within the fiber and this was best accomplished by partially acetylating or carboxylating EDA ligands. The bifunctional carboxylated EDA /AO fiber had a loading capacity of 3.83 mg U/g fiber at the Pacific Northwest National Laboratory with a 21 day contact time in real seawater.
- Research Organization:
- City Univ. of New York (CUNY), NY (United States)
- Sponsoring Organization:
- USDOE Office of Nuclear Energy (NE)
- DOE Contract Number:
- NE0000729
- OSTI ID:
- 1346864
- Report Number(s):
- 13-5149; 13-5149
- Country of Publication:
- United States
- Language:
- English
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