The invention belongs to the fields of
metallurgy and
solid waste comprehensive utilization, and in particular relates to a method for extracting
vanadium in
vanadium-containing steel
slag tailings. The invention aims at providing a high-yield and stable process for recovering
vanadium and iron in steel
slag for comprehensive utilization, value improvement and vanadium
resource recovery of low-vanadium steel
slag, wherein
recovery rates of both vanadium and iron are above 90%. The process comprises steps of A, preparing materials:
combing raw material low-vanadium steel slag
tailings with an auxiliary material A and a
load vector B, wherein the low-vanadium steel slag
tailings account for 40-65%, the auxiliary material A accounts for 14-20% and the
load vector B accounts for 15-46%; B, reducing and melting various materials in a submerged arc furnace to obtain low-vanadium
pig iron and reduced water slag; and C, hot-charging the low-vanadium
pig iron obtained from the step B under a liquid status to a converter, adding a
coolant C, and implementing
oxygen blowing vanadium extraction to obtain vanadium slag and semi-steel. The vanadium extracting process adopts many waste materials in whole using process, and is short in flow, short in time, high in vanadium
recovery rate, free from newly generated
solid waste, free from
discharge of tailings, and energy-saving, and the environment is protected.