Selective Sorption of Perrhenate Ions from Acidic Media: Ion-Exchange Materials, Mechanisms and Selectivity Challenges
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Azizova Kh.M., Kattaev N.T.
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This review examines the selective sorption of perrhenate ions (ReO₄⁻) from acidic media using ion-exchange materials. Particular attention is given to the effects of functional-group chemistry, polymer morphology, and solution composition on Re(VII)/Mo(VI) selectivity. Strong- and weak-base anion exchangers, gel and macroporous structures, as well as modified and extractant-impregnated sorbents are discussed. The review emphasizes that high equilibrium sorption capacity alone is insufficient for technological evaluation and highlights the importance of competitive selectivity, mass transfer, dynamic working capacity, desorption efficiency, and regeneration stability.
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Authors
Azizova Kh.M., Kattaev N.T.
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References:
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