| 钒渣冷却方式对钒尖晶石颗粒大小及钠化焙烧效果的影响 |
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| 引用本文： | 付自碧,尹丹凤,张新霞.钒渣冷却方式对钒尖晶石颗粒大小及钠化焙烧效果的影响[J].钢铁钒钛,2012,33(3):6-10. |
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| 作者姓名： | 付自碧 尹丹凤 张新霞 |
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| 作者单位： | 1. 攀钢集团研究院有限公司,钒钛资源综合利用国家重点实验室,四川攀枝花617000
2. 昆明理工大学冶金与能源工程学院,云南昆明,650093 |
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| 摘 要： | 对三种不同冷却方式得到的水冷钒渣、风冷钒渣和缓冷钒渣的物相结构、钒尖晶石颗粒大小进行了分析,考察了氮气气氛下1 000℃保温时间对钒尖晶石颗粒大小的影响,并对水冷钒渣、风冷钒渣和缓冷钒渣在相同条件下的钠化焙烧效果进行了比较。研究结果表明,缓冷和1 000℃保温有利于钒尖晶石颗粒长大;-0.125 mm钒渣在不添加提钒尾渣焙烧时,不同粒度范围的水冷钒渣焙烧钒转化率比同粒度范围的缓冷钒渣低1～2个百分点;-0.125 mm钒渣添加提钒尾渣焙烧时,水冷钒渣焙烧钒转化率比缓冷钒渣低0.56个百分点。
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| 关 键 词： | 钒渣 冷却方式 钒尖晶石 粒径 钒转化率 |
Influence of Vanadium Slag Cooling Scheme on Particle Size of Vanadium Spinel and Sodium Roasting |
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| Fu Zibi
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Yin Danfeng
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Zhang Xinxia.Influence of Vanadium Slag Cooling Scheme on Particle Size of Vanadium Spinel and Sodium Roasting[J].Iron Steel Vanadium Titanium,2012,33(3):6-10. |
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| Authors: | Fu Zibi Yin Danfeng Zhang Xinxia |
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| Affiliation: | 1.Pangang Group Research Institute Co.,Ltd.,State Key Laboratory of Comprehensive Utilization of Vanadium and Titanium Resources,Panzhihua 617000,Sichuan,China;2.Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology,Kunming 650093,Yunnan,China) |
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| Abstract: | Phase structures and spinels’ particle size of water-cooled vanadium slag,air-cooled vanadium slag and slowly cooled vanadium slag are analyzed,and the effect of holding time at 1 000 ℃ under nitrogen atmosphere on particle size of the vanadium spinel is studied.In addition,comparisons of sodium roasting of water-cooled vanadium slag,air-cooled vanadium slag and slowly cooled vanadium slag under the same conditions are made.According to the research,slow cooling and holding at 1 000 ℃ benefits the growth of vanadium spinel particles;for the vanadium slag of-0.125 mm roasted without vanadium extraction tailings,the conversion rate of water-cooled vanadium slag at different size range is 1%~2% lower than that of slowly cooled vanadium slag at the same size range;for the vanadium slag of-0.125 mm roasted with vanadium extraction tailings,the conversion rate of water-cooled vanadium slag is 0.56% lower than that of slowly cooled vanadium. |
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| Keywords: | vanadium slag cooling scheme vanadium spinel roasting effect particle size conversion rate of vanadium |
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