High-temperature heat capacity and metallurgical performance of Ca3TiFe2O8

Zeng Junjie; Li Gang; Chen Lian; Xue Yuxiao; Lü Xuewei

doi:10.7513/j.issn.1004-7638.2024.03.019

Volume 45 Issue 3

Jul. 2024

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Zeng Junjie, Li Gang, Chen Lian, Xue Yuxiao, Lü Xuewei. High-temperature heat capacity and metallurgical performance of Ca3TiFe2O8[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(3): 141-146. doi: 10.7513/j.issn.1004-7638.2024.03.019

Citation:

Zeng Junjie, Li Gang, Chen Lian, Xue Yuxiao, Lü Xuewei. High-temperature heat capacity and metallurgical performance of Ca₃TiFe₂O₈[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(3): 141-146. doi: 10.7513/j.issn.1004-7638.2024.03.019

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High-temperature heat capacity and metallurgical performance of Ca₃TiFe₂O₈

doi: 10.7513/j.issn.1004-7638.2024.03.019

1.
College of Materials Science and Engineering, Chongqing University, Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and New Materials, Chongqing400044, China
2.
CISDI-INFO Co., Ltd., Chongqing400041, China
3.
Panzhihua Iron and Steel Research Institute Co., Ltd., Pangang Group ,State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua617000, Sichuan, China

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Received Date: 2023-11-22
Publish Date: 2024-07-02

Abstract

Abstract

The quality of the sintered iron ores is dominated by their bonding phases properties. The calcium ferrite system containing TiO₂ was investigated to promote the efficient utilization of vanadium and titanium magnetite resources in the field of sintering. In this paper, Ca₃TiFe₂O₈ (CFT) was found in titanium-bearing sintering ores, and CTF was successfully prepared by solid-state reaction. The high-temperature heat capacity of CTF was determined by the Drop method, and the corresponding fitting function was obtained. In addition, the metallurgical properties (including melting properties and reduction behavior) of CTF were determined. The results showed that the softening, melting and flowing temperatures of CTF were 1418 ℃, 1461 ℃ and 1480 ℃, respectively. The non-isothermal reduction results showed that CTF was reduced to Fe, CaO and CaO·TiO₂ in one step, and the reduction process of CTF was completed when the temperature reached 1150 ℃.
- sintering,
- vanadium-titanium magnetite,
- Ca₃TiFe₂O₈,
- high-temperature heat capacity,
- metallurgical properties

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References(28)

References

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