Effect of shape and size of amidoxime-group-containing adsorbent on the recovery of uranium from sea water
An amidoxime-group-containing adsorbent for the recovery of uranium from sea water was synthesized by radiation-induced graft polymerization of acrylonitrile onto polypropylene fiber of round and cross-shaped sections. The tensile strength and elongation of the synthesized adsorbent, both of which were one-half those of the raw material, were not affected by the shape of the fiber. The deterioration of the adsorption ability induced by immersing the adsorbent in HCl was negligible because of the short immersion time required for the desorption with HCl. The concentration factors for uranium and transition metals in 28 days were in the order of 10/sup 5/, while those for alkali metals and alkaline earth metals were in the order 10/sup -1/-10/sup 1/. The recovery of uranium with the cross-shaped adsorbent was superior to that of the round-shaped one. XMA line profiles show that the distribution of uranium is much restricted to the surface layer when compared with that of alkaline earth metals. Diminishing the diameter or increasing the surface area was effective for increasing the adsorption of uranium.
- Research Organization:
- Japan Atomic Energy Research Institute, Gunma
- OSTI ID:
- 5976566
- Journal Information:
- Sep. Sci. Technol.; (United States), Vol. 22:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
54 ENVIRONMENTAL SCIENCES
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
AMIDES
SORPTIVE PROPERTIES
OXIMES
SEAWATER
URANIUM
ADSORPTION
ACRYLONITRILE
EXPERIMENTAL DATA
GRAFT POLYMERS
POLYPROPYLENE
QUANTITY RATIO
SHAPE
SIZE
ACTINIDES
AMINES
DATA
ELEMENTS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION
METALS
NITRILES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
OXYGEN COMPOUNDS
POLYMERS
POLYOLEFINS
SORPTION
SURFACE PROPERTIES
WATER
400105* - Separation Procedures
520200 - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)
400702 - Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials