Research on activator enhanced acid leaching process of titanium concentrate

Wang Haibo; Long Tao; Xiang Long; Li Li; Tian Congxue

doi:10.7513/j.issn.1004-7638.2024.06.004

Volume 45 Issue 6

Dec. 2024

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Article Navigation > IRON STEEL VANADIUM TITANIUM > 2024 > 45(6): 28-33

Wang Haibo, Long Tao, Xiang Long, Li Li, Tian Congxue. Research on activator enhanced acid leaching process of titanium concentrate[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(6): 28-33. doi: 10.7513/j.issn.1004-7638.2024.06.004

Citation:

Wang Haibo, Long Tao, Xiang Long, Li Li, Tian Congxue. Research on activator enhanced acid leaching process of titanium concentrate[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(6): 28-33. doi: 10.7513/j.issn.1004-7638.2024.06.004

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Research on activator enhanced acid leaching process of titanium concentrate

doi: 10.7513/j.issn.1004-7638.2024.06.004

Wang Haibo^{1, 2
,},
Long Tao³,
Xiang Long³,
Li Li^{3
,
,},
Tian Congxue⁴

1.
State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua 617000, Sichuan, China
2.
College of Chemical Engineering, Sichuan University, Chengdu 610065, Sichuan, China
3.
School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China
4.
School of Vanadium and Titanium, Panzhihua University, Panzhihua 617000, Sichuan, China

Received Date: 2024-06-04
Available Online: 2024-12-30
Publish Date: 2024-12-30

Abstract

Abstract

In response to the problem of high reaction acid concentration in the production of titanium dioxide by sulfuric acid method, which leads to the inability to achieve sulfuric acid equilibrium, an activator is introduced to enhance the acid hydrolysis reaction process and reduce the reaction acid concentration. The strengthening effect of the activator on the low concentration acid leaching of titanium concentrate was studied, and the effects of reaction acid concentration and activator dosage on reaction temperature and acid leaching rate were investigated. The results show that the addition of activating agent can increase the heat release of the reaction, increase the reaction temperature, and improve the porosity of the solid phase, resulting in higher leaching activity. Under the conditions of 0.5% activator dosage, 1.56:1 acid to ore ratio, and 80% reaction acid concentration, the acid hydrolysis rate of titanium concentrate reaches 93.47%. The main components of acid leaching residue are TiFeO₃, Ca(Fe, Mg)Si₂O₆ and SiO₂, indicating that most of the titanium in the raw material can be transferred to the liquid phase.
- titanium concentrate,
- acid leaching,
- activator,
- solid phase

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References(17)

References

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