New technique for the separation of iron, vanadium and titanium in vanadium titanium magnetite

A new technology was proposed to realize the reduction of sodium vanadium titanium magnetite iron, vanadium and titanium step separation; research shows that sodium carbonate is better to follow the separation effect of vanadium titanium magnetite iron, vanadium, titanium, in the presence of a sufficient amount of sodium carbonate, three of two vanadium even under reducing atmosphere will be transformed into sodium vanadate soluble, increase the amount of sodium carbonate, the metallization rate and conversion of vanadium vanadium titanium magnetite were increased; increasing the reaction temperature, the metallization rate increased, the conversion rate of vanadium decreased slightly in 9%; the amount of pulverized coal, adding 20% sodium carbonate, reduction temperature of 1050 DEG C, sodium reduction leaching magnetic separation process can be to realize the effective separation of iron, vanadium, titanium, iron, vanadium leaching liquid and obtained three products of titanium slag, iron, vanadium and titanium yield were 95%, 85%, 52%; replacing part of sodium carbonate using calcium carbonate, can achieve the reduction process The simultaneous conversion of iron and vanadium, but the corresponding conversion rate decreases with the increase of calcium carbonate.