Volume 44 Issue 4
Aug.  2023
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Gao Yang, Xie Huaqing, Zhou Mi, Guo Rui, Qin Mengxin, Wang Zhengyu, Dai Bing. Experimental research on the recycling of valuable metal elements with the extracted-vanadium residues reduced by biomass[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(4): 89-95. doi: 10.7513/j.issn.1004-7638.2023.04.014
Citation: Gao Yang, Xie Huaqing, Zhou Mi, Guo Rui, Qin Mengxin, Wang Zhengyu, Dai Bing. Experimental research on the recycling of valuable metal elements with the extracted-vanadium residues reduced by biomass[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(4): 89-95. doi: 10.7513/j.issn.1004-7638.2023.04.014

Experimental research on the recycling of valuable metal elements with the extracted-vanadium residues reduced by biomass

doi: 10.7513/j.issn.1004-7638.2023.04.014
  • Received Date: 2023-03-27
  • Publish Date: 2023-08-30
  • In order to solve the problems of land resources waste and environmental pollution caused by accumulation of vanadium extraction tailings, two kinds of vanadium extraction tailings were studied in this paper. Biomass was used as reducing agent for high temperature reduction experiment, and the component analysis and phase analysis of reduction products were carried out to explore the influences of oxygen absorption ratio, time and temperature on metallization rate of reduction products. The results show that the iron metallization rate can reach 58.67% when the oxygen absorption ratio is 4, the reduction temperature is 1450 ℃ and the reduction time is 2 h. The chromium metallization rate of vanadium-precipitated waste slag can reach 99.19% when the oxygen absorption ratio is 1.75, the reduction temperature is 1550 ℃ and the reduction time is 4 h. Two kinds of vanadium extracting tailings were mixed to prepare ferrochromium alloy by high temperature reduction of biomass. The preliminary experiment proved that the reduction product was melted under the condition of oxygen absorption ratio of 4, reduction time of 3 hours and reaction temperature of 1550 ℃. The content of chromium in the alloy was 61.51%, the content of iron was 31.05%, and the content of elements met the national standard requirements of FeCr65C4.0 alloy.
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