V_2O_3产品中硫含量影响因素研究
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摘要
对采用焦炉煤气还原多钒酸铵(APV)制取V_2O_3产品中S含量的影响因素进行了研究,得到了不同S含量的V_2O_3产品。试验结果表明:在APV硫含量0.55%、还原温度800℃、还原时间20 min、煤气流量20 L/h的条件下能够得到S≤0.04%的V_2O_3产品。通过降低APV的S含量、还原过程中翻动物料和对温度、时间的控制可以得到S含量更低的V_2O_3产品。在实际生产中,可以通过调节APV的洗涤程度,控制还原温度和时间,得到不同S含量的V_2O_3产品,满足不同钒合金生产要求,达到节约成本的目的。
The factors affecting the content of S in V_2O_3 products prepared by coke oven gas reduction of ammonium polyvanadate(APV) were studied. Different sulfur content V_2O_3 product were obtained. The test results show that V_2O_3 products with S≤0.04% can be obtained under the conditions of APV sulfur content 0.55%, reduction temperature 800 ℃, reduction time 20 min, gas flow rate 20 L/h. V_2O_3 products with lower S content can be obtained by reducing the S content of APV, turning over materials during the reduction process, and controlling temperature and time. In actual production, V_2O_3 products with different S contents can be obtained by adjusting the washing degree of APV, controlling the reduction temperature and time. It can meet various requirements of vanadium alloy production and saving cost.
The factors affecting the content of S in V_2O_3 products prepared by coke oven gas reduction of ammonium polyvanadate(APV) were studied. Different sulfur content V_2O_3 product were obtained. The test results show that V_2O_3 products with S≤0.04% can be obtained under the conditions of APV sulfur content 0.55%, reduction temperature 800 ℃, reduction time 20 min, gas flow rate 20 L/h. V_2O_3 products with lower S content can be obtained by reducing the S content of APV, turning over materials during the reduction process, and controlling temperature and time. In actual production, V_2O_3 products with different S contents can be obtained by adjusting the washing degree of APV, controlling the reduction temperature and time. It can meet various requirements of vanadium alloy production and saving cost.
引文
[1] 陈海军,孙朝晖,尹丹凤,等.回转窑生产V2O3工业试验研究[J]钢铁钒钛,2013,34(2):16-18.
[2] 连忠华.大型化还原回转窑生产V2O3的技术研究[J]铁合金,2013,44(2):11-16.
[3] 张帆,孙朝晖,鲜勇,等.还原工艺对V2O3产品中TV的影响研究[J]铁合金,2012,43(6):12-15.
[2] 连忠华.大型化还原回转窑生产V2O3的技术研究[J]铁合金,2013,44(2):11-16.
[3] 张帆,孙朝晖,鲜勇,等.还原工艺对V2O3产品中TV的影响研究[J]铁合金,2012,43(6):12-15.