2016-Sustainable Industrial Processing Summit
SIPS 2016 Volume 6: Yagi Intl. Symp. / Metals & Alloys Processing

Editors:Kongoli F, Akiyama T, Nogami H, Saito K, Fujibayashi A
Publisher:Flogen Star OUTREACH
Publication Year:2016
Pages:480 pages
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
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    Experimental Research on Vanadium Extraction with CO2 and O2 Mixed Blowing

    Wei-Tong Du1; Peng-Cheng Li1; Xiaoping Liang2; Yu Wang1;
    1CHONGQING UNIVERSITY, Chongqing, China; 2, Chongqing, China;
    Type of Paper: Regular
    Id Paper: 20
    Topic: 3


    Carbon dioxide, a major component of metallurgical waste gas, could be comprehensively utilized to replace part of oxygen in vanadium-extraction converter. The thermodynamic theory and lab-scale experimental research on high efficiency vanadium-extraction in CO2 and O2 mixed blowing process have been undertaken. The results show that the oxidation of silicon and vanadium is rapid at the initial stage of CO2 and O2 mixed blowing process (0~6min), and the bath temperature rises quickly at speed of 10 K/min, then the bath temperature becomes gradually increased at speed of 2 K/min (6~15min) and decreases 7 K as CO2 blowing rate increases 10%. We found that when the proportions of CO2 from 10% to 15% in the mixed gas, the end point temperature of the bath can be controlled at below 1630 K, which is below the converting temperature for selective oxidation of vanadium and carbon. Meanwhile, the carbon oxidation rate and oxygen consumption of 15% CO2 blowing process are 12% and 8.5% less than pure O2 blowing process respectively. These findings suggest that introducing the technology of 15% CO2- 85% O2 mixed blowing could promote the extraction of vanadium, and keep carbon in semi-steel effectively.


    CO2; Extraction; Oxidation; Temperature;


    [1] R. Moskalyk and A. Alfantazi: Processing of Vanadium: A Review, Minerals Engineering, 16(2003), 793-805.
    [2] L. Yaozhong and L. Jin: Review of Vanadium Processing in China, Engineering Sciences, 3(2005), 58-62.
    [3] P. R. Taylor, S. A. Shuey, E. E. Vidal and J. Gomez: Extactive Metallurgy of Vanadium-Containing Titaniferous Magnetite Ores: A review, Minerals and Metallurgical Processing, 23(2006), 80-86.
    [4] W. Huang, S. Yu, X. Shen, L. Xu, N. Wang and M. Chen: Kinetic Study on the Oxidation of Elements in Hot Metal during Vanadium-Extraction Process, Steel Research International, (2015).
    [5] M. Lindvall, E. Rutqvist, G. Ye, J. Bj÷rkvall and D. Sichen: Possibility of Selective Oxidation of Vanadium from Iron and Phosphorus in Fe-V-P Melt, Steel Research International, 81(2010), 105-111.
    [6] N. Zong and Y. Liu: Learning about the Mechanism of Carbon Gasification by CO2 from DSC and TG Data, Thermochimica Acta, 1(2012), 22-26.
    [7] W. Du, Y. Wang, G. Wen: Thermodynamic Study on Vanadium Extraction with CO2 and O2 Mixed Blowing, EPD Congress 2015, Ed. J. Yurko and A. Allanorev, TMS, Orlando, FL, 2015, pp.101-107.
    [8] K. Hashimoto, M. Yamasaki, S. Meguro, T. Sasaki, H. Katagiri, K. Izumiya, N. Kumagai, H. Habazaki, E. Akiyama and K. Asami: Materials for Global Carbon Dioxide Recycling, Corrosion Science, 44(2002), 371-386.
    [9] P. Nejat, F. Jomehzadeh, M. M. Taheri, M. Gohari and M. Z. A. Majid: A Global Review of Energy Consumption, CO2 Emissions and Policy in the Residential Sector (with an Overview of the Top Ten CO2 Emitting Countries), Renewable and Sustainable Energy Reviews, 43(2015), 843-862.
    [10] C. Yi, R. Zhu, B. Chen, C. Wang and J. Ke: Experimental Research on Reducing the Dust of BOF in CO2 and O2 Mixed Blowing Steelmaking Process, ISIJ international, 49(2009), 1694-1699.
    [11] L. Hong, G. Luo, L. Zi, S. Wen and L. Yong: Research of Low-Carbon Mode and on Limestone Addition instead of Lime in the BOF Steelmaking, Journal of Iron & Steel Research International, 17(2010), 115-120.
    [12] Y. Gu, H. Wang, R. Zhu, J. Wang, M. Lv and H. Wang: Study on Experiment and Mechanism of Bottom Blowing CO2 During the LF Refining Process, Steel Research International, 85(2014), 589-598.
    [13] C. Bale, E. BÚlisle, P. Chartrand, S. Decterov, G. Eriksson, K. Hack, I. Jung, Y. Kang, J. Melanšon and A. Pelton: FactSage Thermochemical Software and Databases-Recent Developments, Calphad, 33(2009), 295-311.
    [14] H. Nomura and K. Mori: Kinetics of Decarburization of Liquid Iron with High Concentration of Carbon, Tetsu-to-HaganÚ, 57(1971), 1468-1478.
    [15] J.F. Elliot, M. Gleisner, and V. Ramkrishna, Thermochemistry for Steelmaking, 1963, Addison-Wesley Publishing Company, p.566.

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    Du W, Li P, Liang X, Wang Y. Experimental Research on Vanadium Extraction with CO2 and O2 Mixed Blowing. In: Kongoli F, Akiyama T, Nogami H, Saito K, Fujibayashi A, editors. Sustainable Industrial Processing Summit SIPS 2016 Volume 6: Yagi Intl. Symp. / Metals & Alloys Processing. Volume 6. Montreal(Canada): FLOGEN Star Outreach. 2016. p. 374-383.