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A novel process for the recovery of iron, titanium, and vanadium from vanadium-bearing titanomagnetite: sodium modification–direct reduction coupled process

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Abstract

A sodium modification–direct reduction coupled process was proposed for the simultaneous extraction of V and Fe from vanadium- bearing titanomagnetite. The sodium oxidation of vanadium oxides to water-soluble sodium vanadate and the transformation of iron oxides to metallic iron were accomplished in a single-step high-temperature process. The increase in roasting temperature favors the reduction of iron oxides but disfavors the oxidation of vanadium oxides. The recoveries of vanadium, iron, and titanium reached 84.52%, 89.37%, and 95.59%, respectively. Moreover, the acid decomposition efficiency of titanium slag reached 96.45%. Compared with traditional processes, the novel process provides several advantages, including a shorter flow, a lower energy consumption, and a higher utilization efficiency of vanadium-bearing titanomagnetite resources.

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Acknowledgments

This work was financially supported by the National Basic Research Program of China (Nos. 2013CB632601 and 2013CB632604), the National Science Foundation for Distinguished Young Scholars of China (Nos. 51125018 and 51504230), the Key Research Program of Chinese Academy of Sciences (No. KGZD-EW-201-2), the National Natural Science Foundation of China (Nos. 51374191 and 2110616751104139), and China Postdoctoral Science Foundation (Nos. 2012M510552 and 2013T60175).

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Authors and Affiliations

  1. University of Chinese Academy of Sciences, Beijing, 100049, China

    Yi-min Zhang

  2. National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Beijing, 100190, China

    Yi-min Zhang, Ling-yun Yi, Li-na Wang, De-sheng Chen, Wei-jing Wang, Ya-hui Liu, Hong-xin Zhao & Tao Qi

  3. Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China

    Yi-min Zhang, Ling-yun Yi, Li-na Wang, De-sheng Chen, Wei-jing Wang, Ya-hui Liu, Hong-xin Zhao & Tao Qi

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  1. Yi-min Zhang
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  2. Ling-yun Yi
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  3. Li-na Wang
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  4. De-sheng Chen
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  5. Wei-jing Wang
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  6. Ya-hui Liu
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  7. Hong-xin Zhao
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  8. Tao Qi
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Correspondence to Tao Qi.

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Zhang, Ym., Yi, Ly., Wang, Ln. et al. A novel process for the recovery of iron, titanium, and vanadium from vanadium-bearing titanomagnetite: sodium modification–direct reduction coupled process. Int J Miner Metall Mater 24, 504–511 (2017). https://doi.org/10.1007/s12613-017-1431-4

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  • DOI: https://doi.org/10.1007/s12613-017-1431-4

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