Gas Phase Conversion of Cation Exchange Resin KU-2×8-M (M = Cs, Ni, Cu, Fe, Nd, U) in a Nitrating Atmosphere

Gas Phase Conversion of Cation Exchange Resin KU-2×8-M (M = Cs, Ni, Cu, Fe, Nd, U) in a Nitrating Atmosphere

A new approach to the destructive processing of the cation exchange resin KU-2×8-M (M = Cs, Ni, Cu, Fe, Nd, U) is considered based on the gas phase treatment in a nitrating atmosphere with subsequent chemical treatment of the conversion products. It is shown that exposure of the resin samples in an...

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Veröffentlicht in:Radiochemistry (New York, N.Y.) N.Y.), 2023-08, Vol.65 (4), p.431-441
Hauptverfasser: Kulyukhin, S. A., Gordeev, A. V., Seliverstov, A. F., Kazberova, A. Yu, Kostikova, G. V., Krasavina, E. P., Nevolin, Yu. M.
Format: Artikel
Sprache:eng
Schlagworte:
Cation exchanging
Cationic polymerization
Chemical treatment
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Conversion
Copper
Iron
Nickel
Nitration
Nuclear Chemistry
Resins
Vapor phases
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Zusammenfassung:A new approach to the destructive processing of the cation exchange resin KU-2×8-M (M = Cs, Ni, Cu, Fe, Nd, U) is considered based on the gas phase treatment in a nitrating atmosphere with subsequent chemical treatment of the conversion products. It is shown that exposure of the resin samples in an HNO 3 (vapour)–air atmosphere at temperatures of 403–443 K for 8 and 24 h followed by dissolution of conversion products in 0.5 M NaOH and ozonation of the resulting solutions allows efficient utilization of the resin.
ISSN:1066-3622
1608-3288
DOI:10.1134/S1066362223040057