Method for recovering metals from vanadium slag

The invention provides a method for recovering metals from vanadium slag. The method comprises the following steps: 1, carrying out a contact reaction on the vanadium slag and a leaching agent, and carrying out solid-liquid separation on the mixture obtained after the contact reaction, wherein the leaching agent is strong acid with the concentration of above 37wt%; and 2, adjusting the concentration of H in a liquid phase obtained after the separation in step 1 to 1-5mol/L, and collecting precipitated solids. The method also preferably comprises a step of recovering vanadium, chromium and manganese from the liquid phase obtained in step 2. The method adopting the above technical scheme has the advantages of environmentally-friendly and effective recycling of titanium from the vanadium slag, simple operation and easy implementation. Vanadium, chromium and manganese enter the leaching agent after the treatment of the method, and can be conveniently recycled. The method can effectively recover vanadium, chrom