Recovery of Vanadium (IV) from Leaching Solution Using Fe-MOF Material

Vanadium is an important strategic material that is widely utilized in aerospace, national defense, and metallurgical and chemical engineering fields. V(IV) is a stable form which is derived from the traditional sodium salt roasting-water leaching process for vanadium extraction that widely exists in the leaching solution. To achieve the recovery of V(IV) from the leaching solution, Fe-MOF was employed as an adsorbent for the adsorption of V(IV) from solution in this paper. The influences of reaction time, adsorbent dose, and solution pH on V(IV) adsorption were systematically examined. Under the conditions of initial V(IV) concentrations of 10 mg/L and 100 mg/L, a solution pH of 7, and an adsorbent dosage of 400 mg/L, the removal rates of V(IV) were 97.27% and 52.46%, and the adsorption capacities were 17.62 mg/g and 91.68 mg/g, respectively. The results demonstrated that Fe-MOF can realize the effective recovery of vanadium resources in solution.