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2010•Research on Iron and SteelRequires access

Research on optimization of desulfurization of LF refining slag for GCr15 smelting

Meng Li

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Abstract

In order to solve the problem of poor desulfurization of LF refining slag at Shandong Laiwu Steel Plant,laboratory experiments were carried out in combination with the mechanism of refining slag desulfurization.The refining slag performance and w(S) in the steel were analyzed with 10 kinds of refining slag formula.The study showed that when the compositions of refining slag were at the following range: w(CaO) 45%-50%,w(SiO2) 18%-20%,w(Al2O3) 17%-21%,w(MgO)9%-13%,the desulfurization of the slag was satisfactory to meet the requirements of GCr15 smelting.Thanks to good results obtained in trial production,practical basis for deep desulfurization of LF refining slag has been provided.

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What this paper is about

In order to solve the problem of poor desulfurization of LF refining slag at Shandong Laiwu Steel Plant,laboratory experiments were carried out in combination with the mechanism of refining slag desulfurization.The refining slag performance and w(S) in the steel were analyzed with 10 kinds of refining slag formula.The study showed that when the compositions of refining slag were at the following range: w(CaO) 45%-50%,w(SiO2) 18%-20%,w(Al2O3) 17%-21%,w(MgO)9%-13%,the desulfurization of the slag was satisfactory to meet the requirements of GCr15 smelting.Thanks to good results obtained in trial production,practical basis for deep desulfurization of LF refining slag has been provided.

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Available abstract

In order to solve the problem of poor desulfurization of LF refining slag at Shandong Laiwu Steel Plant,laboratory experiments were carried out in combination with the mechanism of refining slag desulfurization.The refining slag performance and w(S) in the steel were analyzed with 10 kinds of refining slag formula.The study showed that when the compositions of refining slag were at the following range: w(CaO) 45%-50%,w(SiO2) 18%-20%,w(Al2O3) 17%-21%,w(MgO)9%-13%,the desulfurization of the slag was satisfactory to meet the requirements of GCr15 smelting.Thanks to good results obtained in trial production,practical basis for deep desulfurization of LF refining slag has been provided.

Key concepts: Refining (metallurgy), Flue-gas desulfurization, Slag (welding), Smelting, Metallurgy, Materials science, Waste management, Engineering

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Research on optimization of desulfurization of LF refining slag for GCr15 smelting — Research Paper | ScholarLens