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- W4238766098 abstract "Abstract In this work, aminotriazole-modified 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 coefficients (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 efficient, selectively, sustainable, and industrially feasible way for Re(VII) to be recovered from uranium ore leachate and other prospective sources." @default.
- W4238766098 created "2022-05-12" @default.
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- W4238766098 date "2021-03-09" @default.
- W4238766098 modified "2023-10-14" @default.
- W4238766098 title "Efficient separation and recovery of Re (VII) from Re/U bearing acidic solutions using aminotriazole modified cellulose microsphere adsorbents" @default.
- W4238766098 doi "https://doi.org/10.21203/rs.3.rs-179924/v1" @default.
- W4238766098 hasPublicationYear "2021" @default.
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