<p>Vanadium extraction tailings (VET) are rich in iron and chromium, which are potential raw materials for smelting ferrochrome. Due to strict limitations on sulfur and phosphorus amounts in ferrochrome, minimizing their contents in raw materials is crucial for ferrochrome smelting. To improve the quality of ferrochrome and promote sustainability of smelting ferrochrome with VET, sulfur and phosphorus contents in VET should be substantially reduced. Thus, in this work, sulfur and phosphorus removal methods from VET have been established. Since the phosphorus was found in Ca₂P₂O₇ in VET, sulfuric acid leaching was employed to remove it. Under optimal leaching conditions, the phosphorus removal rate was 81.85% ± 0.47%. The sulfur was found in CaSO₄ in VET, 98.5% ± 0.10% of which was removed by the ammonium carbonate leaching method. In the final tailings, the sulfur content was significantly reduced to 0.02% while the residual P content was only 0.008%; the carbon content was increased to 0.76%, with Cr existing in the form of non-toxic Cr³⁺. This work has established a powerful way to promote the sustainable utilization of VET for ferrochromium smelting, which can be related to or used for the sustainable utilization and management of other solid wastes as secondary resources.</p>