摘要
对采用流态化技术，还原多钒酸铵（APV）制取三氧化二钒工艺及相关参数进行了研究，得到了合格的三氧化二钒产品。试验表明：APV在还原温度700～750℃、保温时间10～15rain的条件下可以得到TV≥63％的三氧化二钒产品，比回转窑方法所需时间短、温度低；更容易实现对温度和时间的控制，得到较高品位的三氧化二钒产品（TV〉67％）；流态化生产的三氧化二钒产品C含量低，更有利于钒铁冶炼对C含量的控制；同时，流态化生产三氧化二钒效率高、还原剂消耗少、设备固定、相对安全性更高。
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.
出处
《钢铁钒钛》
CAS
2008年第3期27-30,44,共5页
Iron Steel Vanadium Titanium
