Conclusions
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1.
Only the most low-silica zeolites have high selectivity of exchange of Na+ and K+ ions in zeolites with Sr2+ ions from aqueous solutions of strontium salts.
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2.
Of the zeolites with a low Si/Al ratio, only synthetic K-chabazite K-G(13) and its ion-exchange Na form remain highly efficient absorbents of trace amounts of strontium from a concentrated NaCl solution, which is explained by the low energy of bonding of Na+ cations from the zeolite framework.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 10, pp. 2208–2212, October, 1988.
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Zhdanov, S.P., Shubaeva, M.A. & Andreeva, N.R. Ion-exchange sorption of strontium by synthetic zeolites of various structural types. Russ Chem Bull 37, 1984–1987 (1988). https://doi.org/10.1007/BF00953389
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DOI: https://doi.org/10.1007/BF00953389