Study of ion-exchange properties of hydrated titanium dioxide towards cesium and strontium cations


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Abstract

Acid-base and sorption properties of spherically granulated material based on hydrated titanium dioxide were studied. It was shown that the sorption capacity of the ion exchanger is due both to the structure (cross-linking density of gels and, consequently, their porosity) and to the number of active acid centers. The kinetic specific features of the sorption of cations were considered and it was found that the sorption kinetics is limited by the intraparticle diffusion. It was shown that the sorbent can be used to purify low-salt technological solutions of liquid radioactive wastes.

About the authors

M. V. Maslova

Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Resources, Kola Scientific Center

Author for correspondence.
Email: maslova@chemy.kolasc.net.ru
Russian Federation, Akademgorodok 26a, Apatity, 184209

L. G. Gerasimova

Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Resources, Kola Scientific Center

Email: maslova@chemy.kolasc.net.ru
Russian Federation, Akademgorodok 26a, Apatity, 184209

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