Use of amidoxime-group-containing adsorbent for the recovery of uranium and other elements from phosphoric acid solution
An amidoximine-group-containing fibrous adsorbent which was made by the radiation-induced grafting of acrylonitrile onto a synthetic fiber was applied to the recovery of uranium and other elements (V, Ti, Fe, etc.) from phosphoric acid solution of a fertilizer plant. The adsorption amount of these elements increased in proportion to the concentration of amidoxime groups introduced in the adsorbent. The distribution of the metals adsorbed in 24 h was homogeneous in the adsorbent containing more than 4.9 meq/g amidoxime groups while it was limited to the surface region of the adsorbent containing 1.5 meq/g amidoxime groups. The rise in the pH of the solution brought about by adding sodium hydroxide produced a maximum amount of adsorption at pH = 3. The concentration factors for U, V, Ti, and Fe were 2.8 x 10/sup 2/, 8.6 x 10/sup 3/, 4.2 x 10/sup 3/, and 6.1 x 10/sup 2/, respectively.
- Research Organization:
- Japan Atomic Energy Research Institute, Gunma
- OSTI ID:
- 6975438
- Journal Information:
- Sep. Sci. Technol.; (United States), Vol. 23:1-3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
ADSORBENTS
PERFORMANCE
AMIDES
SORPTIVE PROPERTIES
IRON
ADSORPTION
OXIMES
TITANIUM
URANIUM
VANADIUM
EXPERIMENTAL DATA
PH VALUE
PHOSPHORIC ACID
QUANTITY RATIO
SOLUTIONS
ACTINIDES
AMINES
DATA
DISPERSIONS
ELEMENTS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION
INORGANIC ACIDS
METALS
MIXTURES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
SORPTION
SURFACE PROPERTIES
TRANSITION ELEMENTS
400105* - Separation Procedures
400702 - Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials