Study on reduction of panxi titanium ore pellets by coke oven gas

Ye Endong; Liu Juan; Hu Yuanjin

doi:10.7513/j.issn.1004-7638.2021.01.005

Volume 42 Issue 1

Feb. 2021

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Ye Endong, Liu Juan, Hu Yuanjin. Study on reduction of panxi titanium ore pellets by coke oven gas[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(1): 32-37. doi: 10.7513/j.issn.1004-7638.2021.01.005

Citation:

Ye Endong, Liu Juan, Hu Yuanjin. Study on reduction of panxi titanium ore pellets by coke oven gas[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(1): 32-37. doi: 10.7513/j.issn.1004-7638.2021.01.005

Ye Endong, Liu Juan, Hu Yuanjin. Study on reduction of panxi titanium ore pellets by coke oven gas[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(1): 32-37. doi: 10.7513/j.issn.1004-7638.2021.01.005

Citation:

Ye Endong, Liu Juan, Hu Yuanjin. Study on reduction of panxi titanium ore pellets by coke oven gas[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(1): 32-37. doi: 10.7513/j.issn.1004-7638.2021.01.005

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Study on reduction of panxi titanium ore pellets by coke oven gas

doi: 10.7513/j.issn.1004-7638.2021.01.005

1.
State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd., Panzhihua 617000, Sichuan, China
2.
Pangang Group Vanadium & Titanium Resources Co., Ltd., Panzhihua 617022, Sichuan, China

Received Date: 2020-12-06
Publish Date: 2021-02-10

Abstract

Abstract

Aiming at the problem that Panxi titanium concentrate is difficult to be directly added into furnace due to the fine particle size, the process of reducing the pellets prepared from the titanium ore by coke oven gas was proposed. And the comparative experiments between the pellets and titanium concentrate were also carried out. The results show that micro-cracks and holes appear in the titanium pellets after preroasting, which is favorable for the gas phase reduction reaction. At the reduction temperature of 950 ℃ for 4 h, the metallization rate of titanium ore pellets can reach more than 85%. During the reduction process, the phases of titanium ore pellets change greatly. The main phases change from pseudobrookite to metallic iron, rutile and a small amount of ilmenite. As the reaction progresses, the metallic Fe in the titanium ore pellets gradually appears with scattered distribution, and gradually grows into pieces. It provides theoretical support for smelting titanium slag from Panxi fine grade titanium concentrate.
- titanium ore pellets,
- coke oven gas,
- reduction,
- metallization rate,
- phase

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References(7)

References

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