Trail on Vanadium Recovery of Low-vanadium Hot Metal

Using the both converters link method that a converter is used for vanadium-recovering and another converter for steelmaking,industrial tests of low vanadium hot metal are carried out and vanadium slag of 143.2 t is obtained,according to site conditions of equipments and process and characteristics of low vanadium hot metal of Pangang Group Chengdu Iron and Steel Co.,Ltd..Various technical and economic parameters of vanadium recovery from low vanadium hot metal are good that [C] in semi-steel is 3.23%,[V] in semi-steel 0.036%,temperature of semi-steel 1 395.5℃;V₂O₅ content in vanadium slag is 6.71%,total Fe in it 34.2%;vanadium oxidation ratio is 76%,rate of vanadium recovery 62.78%.The oxidation features of carbon and vanadium in vanadium recovery process show that vanadium recovery mainly started at 3 min before oxygen blowing and ended at 4.5 min of oxygen blowing process,and carbon oxidation is mainly carried out in the later period of vanadium recovery.