V<sub>2</sub>O<sub>5</sub> promotes the efficient separation and recycling mechanism of iron and manganese components in ferromanganese ore

LIU Xinyu; WEN Jing; YUAN Shuai; LI Yihong; LIU Zihao; JIANG Tao

doi:10.7513/j.issn.1004-7638.2025.02.004

Volume 46 Issue 2

May 2025

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LIU Xinyu, WEN Jing, YUAN Shuai, LI Yihong, LIU Zihao, JIANG Tao. V2O5 promotes the efficient separation and recycling mechanism of iron and manganese components in ferromanganese ore[J]. IRON STEEL VANADIUM TITANIUM, 2025, 46(2): 26-32. doi: 10.7513/j.issn.1004-7638.2025.02.004

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LIU Xinyu, WEN Jing, YUAN Shuai, LI Yihong, LIU Zihao, JIANG Tao. V₂O₅ promotes the efficient separation and recycling mechanism of iron and manganese components in ferromanganese ore[J]. IRON STEEL VANADIUM TITANIUM, 2025, 46(2): 26-32. doi: 10.7513/j.issn.1004-7638.2025.02.004

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V₂O₅ promotes the efficient separation and recycling mechanism of iron and manganese components in ferromanganese ore

doi: 10.7513/j.issn.1004-7638.2025.02.004

LIU Xinyu^{1, 2
,},
WEN Jing¹,
YUAN Shuai³,
LI Yihong¹,
LIU Zihao¹,
JIANG Tao^{1, 2
,
,}

1.
School of Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China
2.
Key Laboratory of Ecological Metallurgy of Polymetallic Symbiotic Minerals, Ministry of Education, Northeastern University, Shenyang 110819, Liaoning, China
3.
School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, Liaoning, China

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Received Date: 2024-12-02
Available Online: 2025-04-30
Publish Date: 2025-04-30

Abstract

Abstract

Due to the similar physical and chemical properties of iron and manganese in ferromanganese ore, it is difficult to achieve efficient separation of iron and manganese components by using existing methods. In this paper, V₂O₅ was introduced as an additive for mixed roasting with iron-manganese ore, and the phase evolution of the mixed roasting process, the migration and separation of manganese, iron and vanadium elements in the acid leaching process and the recycling mechanism were systematically studied. The results show that the manganese-containing phase in the iron-manganese ore is converted into acid-soluble manganese pyrovanadate after roasting, while iron and silicon still exist in the form of Fe₂O₃ and SiO₂. The leaching rates of Mn, Fe and V reach 81.25%, 0.0074% and 5.77%, respectively, after acid leaching at pH 2.0 and 1.8, respectively, which realizes the effective separation of manganese and iron components. MnSO₄ is obtained by vacuum drying of manganese-containing leaching solution, which can be used as an intermediate product in manganese metallurgy and manganese chemical industry. The separation of iron and vanadium is realized after alkali leaching, and the Fe₂O₃ content in the iron-rich tailings reaches 83.02%, which can be used as a raw material for blast furnace ironmaking. The V₂O₅ obtained from alkali leaching solution can be returned to the roasting system after hydrolysis precipitation and roasting, and its recycling rate is more than 90%, and the wastewater generated in the process can also be returned to the leaching system for reuse. This study provides a new method for the clean and efficient utilization of co-associated iron-manganese resources.
- V₂O₅,
- ferromanganese ore,
- iron-manganese separation,
- manganese pyrovanadate,
- recycling

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References(21)

References

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