Study on the regulation mechanism of valuable elements in the reduction process of vanadium-titanium magnetite marine placer

Hu Peiwei; Hu Chao; Hu Bing; Xie Zhicheng; Zheng Fuqiang; Liu Chen

doi:10.7513/j.issn.1004-7638.2021.05.002

Volume 42 Issue 5

Oct. 2021

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Hu Peiwei, Hu Chao, Hu Bing, Xie Zhicheng, Zheng Fuqiang, Liu Chen. Study on the regulation mechanism of valuable elements in the reduction process of vanadium-titanium magnetite marine placer[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(5): 10-17. doi: 10.7513/j.issn.1004-7638.2021.05.002

Citation:

Hu Peiwei, Hu Chao, Hu Bing, Xie Zhicheng, Zheng Fuqiang, Liu Chen. Study on the regulation mechanism of valuable elements in the reduction process of vanadium-titanium magnetite marine placer[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(5): 10-17. doi: 10.7513/j.issn.1004-7638.2021.05.002

Citation:

Hu Peiwei, Hu Chao, Hu Bing, Xie Zhicheng, Zheng Fuqiang, Liu Chen. Study on the regulation mechanism of valuable elements in the reduction process of vanadium-titanium magnetite marine placer[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(5): 10-17. doi: 10.7513/j.issn.1004-7638.2021.05.002

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Study on the regulation mechanism of valuable elements in the reduction process of vanadium-titanium magnetite marine placer

doi: 10.7513/j.issn.1004-7638.2021.05.002

Hu Peiwei^{1, 2},
Hu Chao¹,
Hu Bing^{3, 4
,
,},
Xie Zhicheng¹,
Zheng Fuqiang^{3, 4},
Liu Chen^{3, 4}

1.
College of Resources and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China
2.
Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan 430081,Hubei,China
3.
Zhongye Changtian International Engineering Co., Ltd., Changsha 410205, Hunan, China
4.
National Engineering Research Center of Sintering and Pelletizing Equipment System, Changsha 410205, Hunan, China

Received Date: 2021-09-08
Publish Date: 2021-10-30

Abstract

Abstract

In this paper, a marine placer from Indonesia is used as the testing material. Its chemical composition and mineral composition were analyzed by XRD, and the reduction characteristics and the regulation mechanism of the valuable elements of the ore are discussed on the basis of thermodynamics. The reduction and grinding experiments of marine placer were carried out by microwave heating with biochar as the reducing agent for direct reduction. Microwave heating is beneficial to strengthen the reduction process of marine placer. The results show that the reduction product with 98.28% metallization rate can be obtained with the C/Fe ratio of 0.6 and the reduction temperature of 1 200 ℃ for 150 min. Under the conditions of 50% pulp concentration, 40 min grinding time and 0.08 T magnetic field intensity, the refined powder with iron grade of 85.1% and iron recovery of 94.01%, tailings powder with TiO₂ grade of 28.95% and recovery of 71.98%, V₂O₅ grade of 2.14% and recovery of 56.82% can be obtained. The separation and enrichment of iron and vanadium-titanium are effectively realized.
- vanadium-titanium magnetite marine placer,
- direct reduction-grinding-magnetic separation method,
- microwave heating,
- biochar,
- iron,
- titanium,
- vanadium,
- recovery rate

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References(12)

References

[1]	Liu S S, Guo Y F, Qiu G Z, et al. Solid-state reduction kinetics and mechanism of pre-oxidized vanadium-titanium magnetite concentrate[J]. Transactions of Nonferrous Metals Society of China, 2014,24(10):3372-3377. doi: 10.1016/S1003-6326(14)63479-8
[2]	Yang Tao, Chen Hanyu, Song Fumei, et al. Research on developing and utilizing an indonesia beach iron sand[J]. Multipurpose Utilization of Mineral Resources, 2016,(2):29−33. (杨涛, 陈汉宇, 宋复梅, 等. 对印尼某海滨铁砂矿的开发利用研究[J]. 矿产综合利用, 2016,(2):29−33. doi: 10.3969/j.issn.1000-6532.2016.02.006
[3]	Sui Y L, Guo Y F, Travyanov A Y, et al. Reduction roasting-magnetic separation of vanadium tailings in presence of sodium sulfate and its mechanisms[J]. Rare Metals, 2016,(35):954−960.
[4]	Yang S P, Wang J, Du X, et al. Study on melting separation for metalized pellet of vanadium-titanium magnetite and TiO₂ enrichment[J]. Mining & Metallurgical Engineering, 2014,(34):87−88.
[5]	Guo Y F, Tang M J, Jiang T, et al. Research on the slag phase type of vanadium-titanium magnetite in pre-reduction/electric furnace smelting[C]//Processing in: 4th International Symposium on High-temperature Metallurgical Processing, TMS Annual Meeting, San Antonio, Texas, USA, 2013: 87-94.
[6]	Jena M S, Tripathy H K, Mohanty J K, et al. Roasting followed by magnetic separation: A process for beneficiation of titano-magnetite ore[J]. Separation Science & Technology, 2015,50(8):1221−1229.
[7]	王伟, 董辉, 赵亮, 等. 钒钛磁铁矿提钒工艺综述[C]//第十届全国能源与热工学术年会. 中国金属学会能源与热工分会, 杭州: 2019. Wang Wei, Dong Hui, Zhao Liang, et al. Review on vanadium extraction from vanadium-titanium magnetite[C]//The 10th National Conference on Energy and Thermal Engineering. Energy and Thermal Engineering Branch of China Metal Society, Hangzhou: 2019.
[8]	Xi Gan, Lei Ying, Hu Kejun, et al. Application of vanadium abroad[J]. World Nonferrous Metals, 2000,(2):13−21. (锡淦, 雷鹰, 胡克俊, 等. 国外钒的应用概况[J]. 世界有色金属, 2000,(2):13−21.
[9]	范鑫. 稀土掺杂改性水热合成纳米V₂O₅及在硫酸钒催化剂中的应用[D]. 贵阳: 贵州大学, 2019. Fan Xing. Hydrothermal synthesis of nano-V₂O₅ doped with Rare earth and its application in vanadium sulfate catalyst[D]. Guiyang: Guizhou University, 2019.
[10]	Qu Mingjun, Zhu Quanfang. Analysis of vanadium catalyst heating up and blowing in sulphuric acid plant[J]. Sulfuric Acid Industry, 2018,(11):20−22. (瞿明军, 朱全芳. 浅谈硫酸装置钒催化剂的升温和吹除[J]. 硫酸工业, 2018,(11):20−22. doi: 10.3969/j.issn.1002-1507.2018.11.007
[11]	Gao Yongzhang. Analysis of vanadium ore resources and supply and demand situation in China[J]. China Mining, 2019,28(z2):5−10. (高永璋. 中国钒矿资源及供需形势分析[J]. 中国矿业, 2019,28(z2):5−10.
[12]	Sun H Y, Adetoro A A, Pan F, et al. Effects of high-temperature preoxidation on the titanomagnetite ore structure and reduction behaviors in fluidized bed[J]. Metallurgical and Materials Transactions B, 2017,48(3):1898−1907. doi: 10.1007/s11663-017-0925-9