Research on Preparation of Vanadium Trioxide by Means of Fluidization

Vanadium trioxide is prepared from reducing APV by means of fluidization.The experimental results showed that TV content of vanadium trioxide product is over 63% when reaction temperature is 700~750 ℃,reaction time is 10~15 min.By comparison with rotary kiln process,the reaction time of this method is shorter and reaction temperature is lower,TV content of the product is higher(>67%) and C content of product is lower,so it is useful to control C content of ferrovanadium.At the same time,the production efficiency of this method is higher,the consume of reductant is lower,the equipment is more secure.