Study on the selective separation of gallium and iron from vanadium converter sludge

JIANG Yang; QIN Zhifeng; WANG Kui; YANG Zhen; LIU Juan

doi:10.7513/j.issn.1004-7638.2025.04.012

Volume 46 Issue 4

Aug. 2025

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Article Navigation > IRON STEEL VANADIUM TITANIUM > 2025 > 46(4): 88-94, 165

JIANG Yang, QIN Zhifeng, WANG Kui, YANG Zhen, LIU Juan. Study on the selective separation of gallium and iron from vanadium converter sludge[J]. IRON STEEL VANADIUM TITANIUM, 2025, 46(4): 88-94, 165. doi: 10.7513/j.issn.1004-7638.2025.04.012

Citation:

JIANG Yang, QIN Zhifeng, WANG Kui, YANG Zhen, LIU Juan. Study on the selective separation of gallium and iron from vanadium converter sludge[J]. IRON STEEL VANADIUM TITANIUM, 2025, 46(4): 88-94, 165. doi: 10.7513/j.issn.1004-7638.2025.04.012

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Study on the selective separation of gallium and iron from vanadium converter sludge

doi: 10.7513/j.issn.1004-7638.2025.04.012

JIANG Yang^{1, 2
,},
QIN Zhifeng^{1, 2
,
,},
WANG Kui^{1, 2},
YANG Zhen^{1, 2},
LIU Juan^{1, 2}

1.
State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Pangang Group Research Institute Co., Ltd., Panzhihua 617000, Sichuan, China
2.
Department of Advanced Functional Materials, Chengdu Institute of Advanced Metallic Material Technology and Industry Co., Ltd., Chengdu 610305, Sichuan, China

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Received Date: 2025-01-13
Available Online: 2025-08-31
Publish Date: 2025-08-31

Abstract

Abstract

In this study, the leaching test of gallium from the vanadium extraction converter sludge in the smelting process was conducted using the acid leaching method. The occurrence state of gallium in the vanadium extraction converter sludge and the influence of various factors on the leaching rate of gallium were investigated, including acid concentration, liquid-solid ratio, reaction temperature, reaction time and stirring rate, etc. The results showed that gallium ions were mainly present in the lattice of iron oxide. Hydrochloric acid could be used as an effective leaching agent to break the lattice of iron oxide. Under a specific condition with the hydrochloric acid concentration of 5 mol/L, the reaction time of 1 h, the reaction temperature of 60 °C, and the liquid-solid ratio of 5:1, the leaching rate of gallium was 90%. The difference in pH values of elements can effectively separate gallium and iron, and thereby obtain a gallium-rich material. The gallium enrichment in the gallium-rich material was 24 times as high as the vanadium extraction converter sludge. This research result is expected to provide technical support for the extraction of high-value-added key metals from vanadium-titanium magnetite.
- vanadium extraction converter sludge,
- gallium,
- acid leaching,
- separation

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References(16)

References

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