Journal of Northeastern University Natural Science ›› 2014, Vol. 35 ›› Issue (10): 1468-1471.DOI: 10.12068/j.issn.1005-3026.2014.10.023

• Materials & Metallurgy • Previous Articles     Next Articles

Desulfurization of SiMn Alloy with High Sulfur

ZHU Zizong, FAN Jinhuan, LI Qin, XIE Zewei   

  1. College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China.
  • Received:2013-07-29 Revised:2013-07-29 Online:2014-10-15 Published:2014-05-19
  • Contact: ZHU Zizong
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Abstract: The effects of MgO, CaO, BaO in CaOBaOMgOSiO2CaF2 slag on the desulfurization of SiMn alloy with high sulfur were studied in a silicon molybdenum furnace, and with XRD and chemical analyses. The results showed that the desulfurization ability rises first and then falls with increasing m(BaO)∶m(CaO) ratio. When the mass fractions of MgO and CaF2 are 8 % and 10% respectively, and m(BaO)∶m(CaO) is 0914 3, the desulfurization efficiency reaches to 944%. When the mass fractions of MgO and CaF2 are 12 % and 14 % respectively, and m(BaO)∶m(CaO) is 0787 9, the desulfurization efficiency reaches to 954%. Meanwhile,when the mass fractions of CaO and BaO are 35% and 32 % separately, the desulfurization ability rises first and then falls with increasing the mass fraction of MgO, and the desulfurization effect is the best when the mass fraction of MgO is 8 %.

Key words: SiMn alloy with high sulfur, CaOBaOMgOSiO2CaF2 slag system, sulfur capacity, desulfurization, XRD analysis

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