Study on enrichment of titanium resources by treating titanium middling ore with KOH sub molten salt

Zou Min; Wang Qilin; Jiang Wenshi

doi:10.7513/j.issn.1004-7638.2022.05.004

Volume 43 Issue 5

Nov. 2022

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Zou Min, Wang Qilin, Jiang Wenshi. Study on enrichment of titanium resources by treating titanium middling ore with KOH sub molten salt[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(5): 30-34, 44. doi: 10.7513/j.issn.1004-7638.2022.05.004

Citation:

Zou Min, Wang Qilin, Jiang Wenshi. Study on enrichment of titanium resources by treating titanium middling ore with KOH sub molten salt[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(5): 30-34, 44. doi: 10.7513/j.issn.1004-7638.2022.05.004

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Study on enrichment of titanium resources by treating titanium middling ore with KOH sub molten salt

doi: 10.7513/j.issn.1004-7638.2022.05.004

College of Science, Xichang University, Xichang 615013, Sichuan, China

Received Date: 2022-06-30
Available Online: 2022-11-01
Publish Date: 2022-11-01

Abstract

Abstract

The treatment of titanium middling ore with KOH sub molten salt was studied to realize the enrichment of titanium resources. The effects of reaction temperature, reaction time, alkali concentration and particle size on the decomposition of titanium middling ore were investigated, and the phase of the product was analyzed by X-ray diffraction. The following conclusions were drawn. Firstly, the effective decomposition can be realized by treating titanium middling ore with KOH sub molten salt. The better process parameters include stirring speed of 400 r/min, alkali residue mass ratio of 6∶1, reaction temperature of 240 ℃, reaction time of 180 min, alkali concentration of 80%, raw material particle size of 70~80 µm. Under these reaction conditions, the decomposition rate of titanium in the ore is more than 99% , while the decomposition rate of aluminum and silicon is more than 98% and 85%, respectively. Secondly, X-ray diffraction analysis shows that the decomposition product of sub molten salt is mainly potassium hexatitanate (K₂Ti₆O₁₃) after calcination at 800 ℃ for 3 h, indicating that KOH can effectively decompose titanium middling ore and remove aluminum, silicon and other elements.
- titanium extraction,
- titanium middling ore,
- KOH sub molten salt,
- decomposition rate

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References(10)

References

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