Adsorption Properties of Uranium (VI) Ions on Reactive Crosslinked Acrylamidoxime and Acrylic Acid Copolymer Resins |
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| Authors: | Ayman M Atta Adel A-H Abdel-Rahman Ibrahi E El Aassy Fadia Y Ahmed Mohammed F Hamza |
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| Institution: | 1. Egyptian Petroleum Research Institute , Nasr City, Cairo, Egypt khaled_00atta@yahoo.com;3. Department of Chemistry, Faculty of Science , Menoufiya University , Shebein El- Kom, Egypt;4. Nuclear Materials Authority , Cairo, Egypt |
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| Abstract: | Crosslinked acrylic acid (AA) acrylonitrile (AN) copolymer was prepared by suspension copolymerization in the presence of poly (vinyl alcohol) as suspending agent and N,N-methylenebisacrylamide (MBA) and divinylbenzene (DVB) as crosslinking agents. The molecular ratios between AN and AA was 95: 5 mol%. Different ratios 2, 5, and 10 wt% of crosslinkers was used. The nitrile group of the copolymer was converted to acrylamidoxime in the presence of hydroxylamine. Morphologies of the prepared resins were examined by scanning electron microscope (SEM). Recovery of uranium ions was investigated. The adsorption of uranium was occurred in nitric acid, hydrochloric acid and sulfuric acid solutions. Effect of pH, time of loading, type of acid, ratio, and type of crosslinker were investigated. Regeneration of eluted resins was determined. |
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| Keywords: | Acrylamidoxime acrylic acid copolymer resins divinylbenzene methylenebisacrylamid uranium |
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