响应曲面法优化钒钛磁铁矿提钒试验

doi:10.13228/j.boyuan.issn0449-749x.20200292

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Abstract The efficient recovery of iron, vanadium, titanium, and other elements in vanadium-titanium magnetite is of great significance for the comprehensive utilization of vanadium-titanium magnetite resources. Studies have shown that a variety of factors have an important influence on the degree of melting and the yield of elements in the process of sodiumization-reduction-melting coupling of vanadium-titanium magnetite. According to the design scheme of the Box-Behnke principle, this experiment selects three test factors: coal blending amount, alkali blending amount, and reduction temperature. The response surface method is used to study the influence of each factor on the vanadium sodium leaching index and optimize the test factors. By analyzing the experimental results, the corresponding polynomial model was established, and the optimal process conditions were obtained: coal blending amount 25.00%, alkali blending amount 58.29%, reducing melting temperature 1 251.84 ℃, and sodium leaching index response value 90.19%. The verification test was conducted under the best conditions, and it was found that the sodium leaching index was 87.15%, and the error was only 3.37%, which proved that the response surface method prediction model had reliability and accuracy.

Key words： vanadium-titanium magnetite response surface method sodium vanadium extraction melt coupling vanadium distribution rate

Received: 04 June 2020

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	Articles by authors
	YANG Shuang-ping
	YANG Xin
	CAO Shuan-wei
	WANG Miao
	LI Jiang-han
	WANG Yu-ping

Cite this article:

YANG Shuang-ping,YANG Xin,CAO Shuan-wei等. Experiment on optimization of vanadium extraction from vanadium-titanium magnetite by response surface methodology[J]. Iron and Steel, 2021, 56(1): 21-27.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20200292 OR http://www.chinamet.cn/Jweb_gt/EN/Y2021/V56/I1/21

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