中文摘要：

针对高硫硅锰合金,采用高温硅钼炉、XRD以及常规化学分析法,研究了CaO-BaO-MgOSiO2-CaF2五元脱硫渣系中MgO,CaO,BaO对脱硫效果的影响.研究结果表明：随着BaO与CaO质量比的增加,脱硫率先升高后降低.当MgO的质量分数为8%,CaF2的质量分数为10%,BaO与CaO的质量比为0.914 3时,脱硫率达到94.4%;当MgO的质量分数为12%,CaF2的质量分数为14%,BaO与CaO的质量比为0.787 9时,脱硫率达到95.4%.当CaO的质量分数为35%,BaO的质量分数为32%时,随着MgO质量分数的增加脱硫率先升高后降低,MgO的质量分数为8%时,渣的脱硫能力最高.

英文摘要：

The effects of MgO,CaO,BaO in CaO-BaO-MgO-SiO2-CaF2 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 CaF2 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 CaF2 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 %.