钒钛磁铁矿直接还原的研究与发展

doi:10.13228/j.boyuan.issn1006-9356.20230563

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Abstract Vanadium-bearing titanomagnetite is an important characteristic resource in China, and its efficient and clean utilization is of great significance. Due to its complex structure and close symbiosis of iron, vanadium, titanium and other minerals, it is difficult to smelt and utilize. At present, although iron and vanadium have been utilized by blast furnace-converter smelting vanadium-titanium magnetite, the recovery rate of vanadium resources is low, the environmental pollution is large, the operation cost is high, and the titanium resources have not been utilized. Direct reduction process can enrich vanadium and titanium while extracting iron, which is considered as a feasible process to realize comprehensive utilization of iron, vanadium and titanium. From the aspects of reduction mechanism, reduction efficiency and reduction result, different solid reducing agents and gaseous reducing agents are compared respectively, the effect and mechanism of reduction strengthening are expounded, the exploration and research progress of the new coupling process of reduction-sodiumziation-melting are introduced. Based on the concept of low carbon, energy conservation and high efficiency, the idea of applying hydrogen metallurgy technology to the reduction-sodiumziation-melting coupling process is proposed, that is, the hydrogen reduction-sodiumziation-melting coupling process, and the research content needed to be carried out. The development prospect of hydrogen reduction-sodiumziation-melting coupling process with low carbon, short flow and high efficiency is promising.

Key words： vanadium-bearing titanomagnetite direct reduction reducing agent short flow hydrogen reduction

Received: 18 September 2023

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	WANG Xinyu
	ZHAO Haiquan
	QI Yuanhong
	WANG Feng

Cite this article:

WANG Xinyu,ZHAO Haiquan,QI Yuanhong等. Research and development for direct reduction of vanadium-bearing titanomagnetite[J]. China Metallurgy, 2024, 34(2): 1-8.

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http://www.zgyj.ac.cn/EN/10.13228/j.boyuan.issn1006-9356.20230563 OR http://www.zgyj.ac.cn/EN/Y2024/V34/I2/1

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