Study of the ability of 2-AMPR resin to separate Re(VII) from U(VI) in acidic aqueous solutions

In this work, aminotriazole-modi ed microcrystalline cellulose microspheres (3-ATAR) containing an abundant nitrogen content as promising adsorbent was prepared via a radiation grafting method for the selective recovery ReO 4 in the presence of UO 2 2+ in acidic solution. A series of batch and column adsorption experiments including monocomponent and binary systems, were designed for evaluating the adsorption and separation performance of Re (VII) onto 3-ATAR. The 3-ATAR exhibited a good adsorption capacity (max 146.4 mg•g -1 ) of Re(VII) and a rapid adsorption rate, with equilibrium time of 45 min. In binary solution, the high selectivity coe cients (β Re/M ) indicated that 3-ATAR could separate and recover Re(VII) from U(VI) and other metal ions (Cu(II), Cr(III), Ni(II), Zn(II)). In particular, it was found that the adsorption of Re was almost unaffected in U/Re-bearing solutions no matter how much the U(VI) was changed. In the column experiment, when the concentration of U(VI) was 40 times higher than that of Re(VII), 3-ATAR manifested high Re(VII) selectivity over U(VI) from a synthetic uranium ore leachate. This work demonstrated that 3-ATAR could provide an e cient, selectively, sustainable, and industrially feasible way for Re(VII) to be recovered from uranium ore leachate and other prospective sources.

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Selective separation of rhenium from oxygen-pressure leach solution of molybdenite concentrate using modified D201 resin: Experiments and theoretical calculations

Hou,

Fu,

Luo

et al. 2024

Journal of Molecular Liquids

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Study of the ability of 2-AMPR resin to separate Re(VII) from U(VI) in acidic aqueous solutions

Cited by 6 publications

References 33 publications

Adsorption of uranium on amino functionalized acrylonitrile anion exchange resin

Adsorption of uranium on amino functionalized acrylonitrile anion exchange resin

Efficient separation and recovery of Re(VII) from Re/U bearing acidic solutions using aminotriazole modified cellulose microsphere adsorbents

Selective separation of rhenium from oxygen-pressure leach solution of molybdenite concentrate using modified D201 resin: Experiments and theoretical calculations

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