Zeolite Adsorbents for Selective Removal of Co(II) and Li(I) from Aqueous Solutions

Cobalt and lithium are critical metals because of its shortage, difficulty extraction huge economic impact due to their market value. The purpose this work is study selective removal from aqueous solutions in different conditions using two commercial FAU zeolites as adsorbent materials. These solids were characterized by XRD, XRF BET analysis, follow up structure integrity, Si/Al ratio, specific surface area evolutions through preparation process. kinetic indicates that both with a dosage 5 g/L 100% cobalt achievable, while kept around 30% (separation factor 3.33). This selectivity important these frequently appear together leaching form, for example, ion-Li batteries. In relation the adsorption equilibrium, presents finite capacity behavior not observed adsorption. For reason, Langmuir model most adequate represent adsorption, better represented Freundlich model.