| Experimental Study Refining on Composition Slag Containing Optimization for BaO |
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| 作者姓名： | GAO Yanhong BIAN Lingtao ZHANG Sanhua |
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| 作者单位： | [1]Chongqing University of Science and Technology, Chongqing 400016, China [2]Chongqing Hanlin Project Cost Consultant Co. , Ltd. |
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| 摘 要： | Laboratory study; was carried out on deep desulfurization of molten steel by CaO-Al2O3 based refining slag containing BaO at 1873K to achieve lower sulphur level in steel. A mathematical model of desulfurization was established with the methodology of quadratic orthogohal regression. According to the modle, the influence of AlO3/CaO, MgO, CaF2, BaO in slag on desulfurization rate was analyzed. The results showed that the desulfurization rate almost linearly decreased with the increase of Al2O3/CaO and it increased firstly then decreased when MgO and BaO content increased respectixely, yet the trend is on the contrary as CaF2 content increased. Based on the comprehensive analysis, the optimum composition of the refining slag was achieved under the experimental conditions.
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| 关 键 词： | 精制炉渣 脱硫技术 BaO材料 回归技术 |
| 收稿时间： | 2007-07 |
Experimental Study Refining on Composition Slag Containing Optimization for BaO |
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| GAO Yanhong BIAN Lingtao ZHANG Sanhua.Experimental Study Refining on Composition Slag Containing Optimization for BaO[J].China’s Refractories,2007,16(4):24-27. |
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| Authors: | GAO Yanhong BIAN Lingtao ZHANG Sanhua |
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| Affiliation: | [1]Chongqing University of Science and Technology, Chongqing 400016, China; [2]Chongqing Hanlin Project Cost Consultant Co. , Ltd. |
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| Abstract: | Laboratory study; was carried out on deep desulfurization of molten steel by CaO-Al2O3 based refining slag containing BaO at 1873K to achieve lower sulphur level in steel. A mathematical model of desulfurization was established with the methodology of quadratic orthogohal regression. According to the modle, the influence of AlO3/CaO, MgO, CaF2, BaO in slag on desulfurization rate was analyzed. The results showed that the desulfurization rate almost linearly decreased with the increase of Al2O3/CaO and it increased firstly then decreased when MgO and BaO content increased respectixely, yet the trend is on the contrary as CaF2 content increased. Based on the comprehensive analysis, the optimum composition of the refining slag was achieved under the experimental conditions. |
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| Keywords: | Refining slag Desulfurization Orthogo-nal re gression |
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