Desorption of uranium recovered with fibrous amidoxime adsorbent shaped into balls
- Kyushu Univ., Fukuoka (Japan)
Amidoxime fiber synthesized with a commercial PAN fiber was packed in 2 cm-diameter spherical shells made of plastic net. The adsorbent balls were then packed in a cage through which seawater passed. This shape of adsorbent increased the contact efficiency between adsorbent and seawater but might decrease the desorption rate of uranium adsorbed in the balls. The rate of desorption from 2 cm-diameter adsorbent balls packed in a column was nearly equal to the value obtained with completely dispersed amidoxime fiber, however, when the eluent velocity through the balls was higher than 2-4 cm[center dot]s[sup [minus]1] and the void fraction in the balls was higher than 0.8. Most of the liquid held in the balls was removed with a light centrifugation. 11 refs., 4 figs., 1 tab.
- OSTI ID:
- 6932262
- Journal Information:
- Separation Science and Technology; (United States), Vol. 29:11; ISSN 0149-6395
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
URANIUM COMPOUNDS
ADSORPTION
DESORPTION
ADSORBENTS
CENTRIFUGATION
FIBERS
HYDROCHLORIC ACID
NITRIC ACID
ORGANIC POLYMERS
SEAWATER
SPECTROSCOPY
VOID FRACTION
ACTINIDE COMPOUNDS
CHLORINE COMPOUNDS
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
POLYMERS
SEPARATION PROCESSES
SORPTION
WATER
050101* - Nuclear Fuels- Reserves
Exploration
& Mining- Recovery from Waters of the Earth- (1992-)
400105 - Separation Procedures
400702 - Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials
400102 - Chemical & Spectral Procedures