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

VanadiumVanadium 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 vanadiumVanadium extraction that widely exists in the leaching solutionLeaching solution. To achieve the recovery of V(IV) from the leaching solutionLeaching solution, Fe-MOFFe-MOF was employed as an adsorbent for the adsorptionAdsorption of V(IV) from solution in this paper. The influences of reaction time, adsorbent dose, and solution pH on V(IV) adsorptionAdsorption 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 adsorptionAdsorption capacities were 17.62 mg/g and 91.68 mg/g, respectively. The results demonstrated that Fe-MOFFe-MOF can realize the effective recovery of vanadiumVanadium resources in solution.