Abstract
A comparative study of the physicochemical and performance properties of samples of Ti(OH)1.36·(HPO4)1.32·2.3H2O ion exchanger in the finely dispersed and granulated forms, utilized for commercial production, was made. The sorption of Cs and Sr cations from solutions of various compositions was studied in batch experiments, and the diffusion coefficients of the exchanging ions were determined. The hydrolytic stability of the ion exchangers was examined with the aim to determine the optimal operation conditions. Experiments showed that the cation exchangers based on titanium phosphate are the most efficient in removal from liquid radioactive waste of induced radioactive isotopes of corrosion products, which is due to formation of weakly dissociating compounds of nonferrous metal ions with functional groups of the ion exchangers in the sorbent phase.
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