New type of amidoxime-group-containing adsorbent for the recovery of uranium from seawater

Journal Article · Tue Jan 01 00:00:00 EST 1985 · Sep. Sci. Technol.; (United States)

DOI:https://doi.org/10.1080/01496398508058357· OSTI ID:5051096

Omichi, H; Katakai, A; Sugo, T; Okamoto, J

A new type of adsorbent containing amidoxime groups for the recovery of uranium from seawater was synthesized by the radiation-induced graft polymerization of acrylonitrile onto polymeric fiber followed by amidoximation with hydroxylamine. When amidoxime groups were introduced superficially on the fiber, the amount of uranium adsorbed by the amidoxime groups was higher than that with the amidoxime groups introduced homogeneously in the fiber. The introduction of the poly(acrylic acid) chain and the increase in temperature and flow rate in the adsorption process were effective in increasing the amount of adsorbed uranium. Although alkali metals and alkaline earth metals were found in the adsorbent, the concentration factors for these metals were less than 1/10/sup 3/ of that for uranium. The present adsorbent had a high stability to various treatments such as contact with alkali and seawater. 24 references, 9 figures, 3 tables.

• Research Organization: Japan Atomic Energy Research Institute, Takasaki
• OSTI ID: 5051096
• Journal Information: Sep. Sci. Technol.; (United States), Vol. 20:2-3
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ACRYLONITRILE
SORPTIVE PROPERTIES
ADSORBENTS
CHEMICAL PREPARATION
GRAFT POLYMERS
HYDROXYLAMINE
ORGANIC POLYMERS
URANIUM
ADSORPTION
EXPERIMENTAL DATA
FLOW RATE
SEAWATER
TEMPERATURE DEPENDENCE
ACTINIDES
AMINES
DATA
ELEMENTS
HYDROGEN COMPOUNDS
INFORMATION
METALS
NITRILES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
POLYMERS
SORPTION
SURFACE PROPERTIES
SYNTHESIS
WATER
400105* - Separation Procedures