Abstract
In the present investigation radioactive tracer isotopes 131 I and 82 Br were used to study the kinetics of iodide and bromide ion-isotopic exchange reaction. The kinetics study was performed to study the effect of ionic concentration and temperature on the specific reaction rate calculated in min -1 . Fro m the initial ionic concentration and knowing the value of specific reaction rate, the values of amount of ions exchanged in mmo l and percentage ion exchange were calcu lated. It was also observed that for both the resins, there exists strong positive co-relat ionship between amount of ions exchanged and concentration of ionic solution, while a strong negative co-relationship was observed between amount of ions exchanged and temperature of exchanging mediu m. The values of specific reaction rate, amount and percentage of ions exchanged so obtained for the ion-isotopic exchange reactions using strong base, nuclear grade anion exchange resin Tulsion A-30 and non-nuclear grade anion exchange resin Indion-820 were co mpared. It was observed that the above values calculated were higher for Tulsion A-30 as compared to that for Indion-820, indicating superior performance of Tu lsion A-30 under identical experimental conditions. The similar study on application of radioactive tracer isotopes can be extended further for performance assessment of different nuclear as well as non-nuclear grade ion exchange resins.
Highlights
Radioisotopes have been applied to the solution of p roblems in industry fo r over 50 years, research and development of the technology continues unabated [1, 2]
Considering the above wide use of rad ioactive isotopes in various industrial and technical applicat ions, in the present investigation, they are applied to assess the performance of industrial grade anion exchange resins Tulsion A-30 and Indion-820 under different operational parameters like temperature and ionic concentrations
Correlat ion bet ween Temperat ures of exchanging medium and amount of iodide ion exchanged Amount of ion exchange resin = 1.000 g, Concentration of labeled exchangeable ionic solution = 0.002M, Volume of labeled ionic solution = 250 mL, Amount of exchangeable ions in 250 mL labeled solution = 0.500 mmol Correlation coefficient (r) for Indion-820 = -0.9959 Correlation coefficient (r) for T ulsion A-30 = -0.9992
Summary
Radioisotopes have been applied to the solution of p roblems in industry fo r over 50 years, research and development of the technology continues unabated [1, 2]. Applicat ions of radiotracers in chemical research cover the studies of reaction mechanis m, kinetics, exchange processes and analytical applications such as radiometric titrat ions, solubility product estimation, isotope dilution analysis and autoradiography. Radiotracers have helped in identification of leaks in buried pipelines and dams Process parameters such as mixing efficiency, residence time, flow rate, material inventory and silt movement in harbours are studied using radioisotopes[10].The efficiency of several devices in a wastewater treatment plant (primary and secondary clarifiers, aeration tank) is investigated by means of radiotracers[11]. Considering the above wide use of rad ioactive isotopes in various industrial and technical applicat ions, in the present investigation, they are applied to assess the performance of industrial grade anion exchange resins Tulsion A-30 and Indion-820 under different operational parameters like temperature and ionic concentrations. The present technique can be e xtended further to standardize the operational parameters so as to bring about the most efficient performance of those resins in their specific industrial applications
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
