Journal of Northeastern University Natural Science ›› 2014, Vol. 35 ›› Issue (8): 1146-1150.DOI: 10.12068/j.issn.1005-3026.2014.08.019

• Materials & Metallurgy • Previous Articles     Next Articles

Optimization of BF Slag System for VanadiumTitanium Magnetite by Comprehensive Weighted Scoring Method

CHU Mansheng, FENG Cong, TANG Jue, LIU Zhenggen   

  1. School of Materials & Metallurgy, Northeastern University, Shenyang 110819, China.
  • Received:2013-12-25 Revised:2013-12-25 Online:2014-08-15 Published:2014-04-11
  • Contact: CHU Mansheng
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Abstract: The components of practical blast furnace(BF) slag of vanadiumtitanium magnetite provided by a domestic enterprise were adjusted by adding pure chemical reagents under laboratory conditions, then the five factors in four levels orthogonal experiment was carried out and the metallurgical properties of slag samples were investigated using RTW melt property tester. Finally, through the comprehensive weighted scoring method, the suitable BF slag system for smelting vanadiumtitanium magnetite was obtained as follows: binary basicity was 115, the content of MgO, Al2O3, TiO2 and V2O5 was 14%, 13%, 7% and 020%,respectively. Besides, the order of each factor affecting comprehensive indexes of slag system was the V2O5 content, MgO content, binary basicity, TiO2 content and Al2O3 content.

Key words: vanadiumtitanium magnetite, slag metallurgical property, slag system optimization, orthogonal experiment, comprehensive weighted scoring method

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