Extraction of strontium from aqueous solution by ion exchange

In this study, strontium extraction with different resins from sulfuric acid solutions has been investigated. The extraction of strontium from aqueous solution can be achieved by adding a dowex50w cation exchange resin to the aqueous solution. Dowex50W-X8 with 200 - 400 mesh extracted 93.89% of Strontium from sulfuric acid solutions, at the ambient temperature. The effect of pH, temperature, mass of resin and concentration of interfering ions to optimize the conditions of using Dowex50W-X8 for removing strontium from aqueous solutions has been evaluated. The kinetics models of the sorption were analyzed using pseudo-first order and pseudo-second order kinetic models. The data showed that the pseudo-second order kinetic model was more appropriate for this system. Stripping experiments were also conducted with different stripping reagents independently.

Keywords:

Dowex50W , Ion Exchange , Kinetic , Resin , Strontium Extraction