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金属矿山 ›› 2012, Vol. 41 ›› Issue (04): 91-94.

• 矿物工程 • 上一篇    下一篇

攀钢钒渣钙化焙烧影响因素研究及过程热分析

尹丹凤1,2,彭毅1,2,孙朝晖1,2,何文艺1,2   

  1. 1.攀钢集团研究院有限公司;2.钒钛资源综合利用国家重点试验室
  • 出版日期:2012-04-23 发布日期:2012-04-26

Influencing Factors of Calcified Roasting and Thermal Analysis to the Process of Vanadium Slag Produced from Pangang

Yin Danfeng1,2,Peng Yi1,2,Sun Zhaohui1,2,He Wenyi1,2   

  1. 1.Pangang Group Research Institute Co.,Ltd.;2.State Key Laboratory of Comprehensive Utilization of Vanadium and Titanium Resources
  • Online:2012-04-23 Published:2012-04-26

摘要: 对攀钢钒渣进行钙化焙烧试验,通过钒转浸率考察了钒渣粒度、钙钒比、焙烧温度、焙烧时间对焙烧效果的影响,并对焙烧过程进行了热分析。结果表明:在钒渣粒度为-140目、钙钒比为0.62、焙烧温度为900 ℃、焙烧时间为150 min时,钙化焙烧效果较好,焙烧熟料的钒浸出率可达91%以上;钒渣钙化焙烧是钒渣首先氧化分解,并在680 ℃与碳酸钙直接作用生成钙的钒酸盐的过程。

关键词: 钒渣, 钙化焙烧, 影响因素, 转浸率

Abstract: Carried out the calcified roasting test to vanadium slag from pangang, investigated the influencing factors to roasting effect including the vanadium slag granularity, ratio of calcium to vanadium, roasting temperature, roasting time, and thermal analysis to the roasting process. The results show that: under the conditions of the granularity of vanadium slag at -140 mesh, the ratio of calcium to vanadium at 0.62, roasting temperature at 900 ℃,roasting for 150 min, the effect of calcified roasting is better, and the leaching rate of vanadium can reach to above 91%; the process of calcified roasting is oxygenolysis of vanadium slag first, and then direction action with calcium carbonate at 680 ℃ to produce Ca-containing vanadates.

Key words: Vanadium slag, Calcified roasting, Influencing factors, Immersion ratio