超细氧化铁低温还原工艺研究

doi:10.13228/j.boyuan.issn1006-6543.20160102

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Abstract The process of preparing ultrafine iron powder by low temperature hydrogen reduction of ultrafine iron oxide was studied. The iron oxide powders with different particle size were obtained by high-energy ball milling， and the powders were reduced in hydrogen atmosphere at low temperature. The oxygen content was determined by nitrogen oxygen analyzer， and the reduction rate of iron oxide powder was calculated. The influence of various factors on the reduction rate was analyzed， and the optimal reduction process parameters were obtained by comparative analysis. Results show that the best reduction process parameters are： the reduction temperature is 700 ℃， the reduction time is 60 min， the average particle size of iron oxide powder is 0.8 μm， and the hydrogen flow rate is 1.0 L/min.

Key words： iron oxide reduction ultrafine iron powder reduction rate

Received: 05 September 2016 Published: 27 February 2018

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	Articles by authors
	LIN Chang-Ping
	LI Cheng-Wei
	ZHANG Wu

Cite this article:

LIN Chang-Ping,LI Cheng-Wei,ZHANG Wu. Study on low temperature reduction process of superfine iron oxide[J]. , 2018, 28(01): 15-19.

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http://edit.chinamet.cn/Jweb_fmyjgy/EN/10.13228/j.boyuan.issn1006-6543.20160102 OR http://edit.chinamet.cn/Jweb_fmyjgy/EN/Y2018/V28/I01/15

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