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

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

doi:10.1007/s12613-017-1431-4

Volume 24 Issue 5

May 2017

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Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2017 > 24(5): 504-511

Yi-min Zhang, Ling-yun Yi, Li-na Wang, De-sheng Chen, Wei-jing Wang, Ya-hui Liu, Hong-xin Zhao, and Tao Qi, 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(2017), No. 5, pp. 504-511. https://doi.org/10.1007/s12613-017-1431-4

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Yi-min Zhang, Ling-yun Yi, Li-na Wang, De-sheng Chen, Wei-jing Wang, Ya-hui Liu, Hong-xin Zhao, and Tao Qi, 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(2017), No. 5, pp. 504-511. https://doi.org/10.1007/s12613-017-1431-4

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Research Article

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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Corresponding author:
Tao Qi E-mail: tqgreen@home.ipe.ac.cn
Received: 19 September 2016; Revised: 18 December 2016; Accepted: 19 December 2016

Abstract

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.
- titanomagnetite;
- direct reduction;
- modification;
- leaching;
- magnetic separation

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References

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