https://doi.org/10.15255/KUI.2013.010
Published: Kem. Ind. 63 (7-8) (2014) 245–252
Paper reference number: KUI-10/2013
Paper type: Original scientific paper
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Performance Based Evaluation of Industrial Grade Resins Duolite ARA-9366 and Duolite A-368

P. U. Singare

Abstract

This study deals with performance evaluation of nuclear and non-nuclear grade resins Duolite ARA-9366 and Duolite A-368 by application of the radioanalytical technique. The evaluation was made based on kinetics data of ion-isotopic exchange reactions using 131I and 82Br radioactive tracer isotopes. It was observed that under identical experimental conditions of 35.0 °C, 1.000 g of ion exchange resins and 0.002 mol l−1 labelled iodide ion solution, the values of specific reaction rate in min−1 and initial rate of iodide ion exchange in mmol min−1 was 0.173 and 0.044 respectively for Duolite ARA-9366 resin; that was higher than the values of 0.129 and 0.030 respectively reported for Duolite A-368 resins. The identical trend was observed for the two resins during bromide ion-isotopic exchange reaction. The results of this investigation show the existence of a strong positive co-relationship between the amount of ions exchanged and the concentration of ionic solution; as well as the existence of a strong negative co-relationship between the amount of ions exchanged and the temperature of the exchanging medium for both resins. The overall results indicate superior performance of Duolite ARA-9366 over Duolite A-368 under identical experimental conditions.

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Keywords

ion exchange resins, radiotracer isotopes, reaction kinetics, Duolite ARA-9366, Duolite A-368, 131I, 82Br