青海某磁铁矿超纯铁精矿粉直接还原实验研究

doi:10.13228/j.boyuan.issn1006-6543.20180177

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Abstract Abstract：This paper mainly focuses on the ultra-pure iron concentrate with a grade of 71.58% iron obtained by fine grinding，weak magnetic separation，reverse flotation and two-stage dehydration process，with a 68% iron concentrate in marine sedimentary magnetite grade in Qinghai as raw material. The iron ore concentrate can directly produce reduced iron powder with a total iron content of up to 98.7% through the primary reduction of hydrogen.The optimal experimental conditions are as follows：hydrogen flow rate 1.5 m3/h，reduction time 1.5 h，reduction temperature 850 ℃.

Key words： iron concentrate hydrogen direct reduction thickness

Received: 14 December 2018

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	Articles by authors
	GAO Shou-kun
	CHEN Zheng
	YANG Dong-wei
	WU Teng

Cite this article:

GAO Shou-kun,CHEN Zheng,YANG Dong-wei, et al. Experimental study on direct reduction of ultra-pure iron concentrate in a mining company in Qinghai[J]. Powder Metallurgy Industry, 2020, 30(03): 36-39.

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http://edit.chinamet.cn/Jweb_fmyjgy/EN/10.13228/j.boyuan.issn1006-6543.20180177 OR http://edit.chinamet.cn/Jweb_fmyjgy/EN/Y2020/V30/I03/36