Izvorni znanstveni članak
https://doi.org/10.15255/KUI.2013.010
Performance Based Evaluation of Industrial Grade Resins Duolite ARA-9366 and Duolite A-368
P. U. Singare
; Department of Chemistry, Bhavan’s College, Munshi Nagar, Andheri (West), Mumbai, Indija
Sažetak
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.
Ključne riječi
Ion exchange resins; radiotracer isotopes; reaction kinetics; Duolite ARA-9366; Duolite A-368; <sup>131</sup>I, <sup>82</sup>Br
Hrčak ID:
123790
URI
Datum izdavanja:
1.7.2014.
Posjeta: 1.498 *