Experiment Study of Vanadium Titano-magnetite by Full Oxygen Bath Smelting Process

Blast furnace is the most mature way to smelt vanadium tatino-magnetite,but the smelting of vanadium titano-magnetite in blast furnace needs to be added with ordinary ore and the TiO₂ content in slag is too low to be used. In order to achieve full vanadium tatino-magnetite smelting,a new rotary kiln pre reduction and full oxygen bath smelting process is put forward in this paper. The technology has the advantages of short process flow,controllable slag oxygen potential and low energy consumption.The influence of temperature and slag basicity on the smelting is studied.The results show that the vanadium tatinomagnetite smelted by full bath smelting process is feasible when the smelting temperature is above 1 450℃ and the slag basicity is more than 0.8.The fluidity of the slag is good,and the iron is easily separated from slag.But the sulfur content of liquid iron is higher than 0.21%,which can not reach the requirements of steelmaking.It must be desulfurization before steelmaking.