A sorbent based on natural dolomite for recovery of cobalt radionuclides

Granulated sorbents for recovery of cobalt radionuclides were prepared from carbonate natural raw material (dolomite) using thermal activation. The chemical and phase composition and the main physicochemical properties of the sorbents were determined. Their ability to sorb 60 Co under dynamic condit...

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Veröffentlicht in:	Radiochemistry (New York, N.Y.) N.Y.), 2011-12, Vol.53 (6), p.633-637
Hauptverfasser:	Rat’ko, A. I., Ivanets, A. I., Sakhar, I. O., Davydov, D. Yu, Toropova, V. V., Radkevich, A. V.
Format:	Artikel
Sprache:	eng
Schlagworte:	Chemistry Chemistry and Materials Science Chemistry/Food Science Nuclear Chemistry
Online-Zugang:	Volltext
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Zusammenfassung:	Granulated sorbents for recovery of cobalt radionuclides were prepared from carbonate natural raw material (dolomite) using thermal activation. The chemical and phase composition and the main physicochemical properties of the sorbents were determined. Their ability to sorb 60 Co under dynamic conditions was evaluated. Among all the tested samples, the sorbent prepared at 900°C exhibits the best sorption and service characteristics (degree of recovery 0.8–1.0, distribution coefficient 1.7 × 10 3 ml g −1 , total absorbed specific activity 7.7 × 10 4 Bq g −1 ).
ISSN:	1066-3622 1608-3288
DOI:	10.1134/S1066362211060105