화학공학소재연구정보센터
Applied Chemistry, Vol.7, No.2, 619-622, October, 2003
Adsorption of Ionic Zinc on IRN150 Mixed Resin
Zinc acetate has been proposed and used to evaluate ionic zinc as a mean to reduce reactor radiation buildup at several nuclear plants. Thermodynamic analysis of the aqueous zinc system using reliable data showed that the stability of hydrolyzed zinc species increase with pH and temperature. Batch kinetics and isotherm studies were carried out to investigate the mixed resin performance of zinc adsorption. The equilibrium isotherm of zinc adsorption onto nuclear grade resin show that the data correlate well with Langmuir model and that the adsorption is physical in nature. The adsorption temperature influenced the rate of adsorption. The maximum capacity according to the Langmuir model is about 0.6 meq/g for an initial zinc concentration of 100 ppm at 50 ℃.