Aluminothermal recovery of vanadium-containing waste in electroslag melting
Given the growing demand for ferrovanadium, a certain shortage of it in Ukraine, and the growing amount of vanadium-containing industrial waste, it is appropriate to study the recovery of vanadium from them in the most economically feasible way. The process of producing ferrovanadium from chemically enriched vanadium-containing waste, where secondary aluminum is used as a reducing agent and small metal waste from various industries is used as a filler. The electro-alumina reduction process takes place in a single stage, under a slag layer, and is completely controllable. The process parameters as well as the chemical composition of the metal and slag can be controlled in a wide range, depending on the requirements for the final product. The investment component in equipment for this process is relatively low. The technology ensures the extraction of vanadium into metal up to 85-90%, high quality of the product with a vanadium content of from 40 to 80 % and the possibility of implementing waste-free production.”