钒钛铁精矿非自然碱度含碳球团高温固态还原试验

doi:10.13228/j.boyuan.issn0449-749x.20170204

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Abstract In order to investigative the high temperature solid state reduction law of non-natural basicity carbon-containing pellet of vanadium-bearing titanomagnetite，with vanadium-bearing titanomagnetite as raw materials， effects of reduction temperature， reduction time， alkalinity and carbon ratio on solid state reduction of non-natural basicity carbon-containing pellet of vanadium-bearing titanomagnetite at high temperature were studied in the laboratory， and the phase compositions of metallization pellet were determined by X-ray diffraction analysis. The results show that the metallization ratio of the pellet increases with reasonable control of reduction temperature， reduction time， basicity and increased carbon ratio. The TiCN of the metallization pellet has been produced when the reduction temperature is above 1 400 ℃. The TiCN formation might be restrained by increasing the basicity， and increasing carbon ratio was favorable to the formation of TiCN. The optimal solid state reduction conditions for the quality requirements of metallization pellet in the subsequent melting process are as follows， reduction temperature of 1 350 ℃， basicity of 1.0， reduction time of 30 min， and carbon ratio of 1.3. Under the optimal conditions， the metallization ratio and carbon content of the pellet are 93.72% and 6.08%， respectively， and the main phase of metallization pellet are anosovite and iron.

Received: 02 May 2017 Published: 05 February 2018

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	WU En-Hui
	HOU Jing
	YANG Shao-Li
	MA Lan

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WU En-Hui,HOU Jing,YANG Shao-Li等. Experiment on solid state reduction of non-natural basicity carbon-containing pellet of vanadium-bearing titanomagnetite at high temperature[J]. Iron and Steel, 2018, 53(1): 24-28.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20170204 OR http://www.chinamet.cn/Jweb_gt/EN/Y2018/V53/I1/24

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