Experimental Determination of Sulfur Partition Ratio in the CaO-Al2O3-SiO2-CaF2-MgO Slag and Liquid Iron

International Conference on Materials Sciences and Nanomaterials

材料科学;物理学

JinZhu, Z.^1 ; Yunsheng, Y.^1 ; Wei, F.^1 ; Jialiang, Z.^2 ; Yi, Z.^2

College of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou

550025, China^1

Shougang Shuicheng Iron and Steel (Group) Co. Ltd, Liupanshui, Guizhou

553028, China^2

关键词: Analytical reagent;    CaO-Al2O3-SiO2;    Controlled temperature;    Desulphurization;    Equilibrium reactions;    Experimental determination;    Fundamental theory;    Sulfur partition;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/230/1/012024/pdf
DOI  :  10.1088/1757-899X/230/1/012024

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The external desulphurization of molten iron has become an important step in the production of steel and iron. The desulfurization degree of the high calcium slag, which was mainly taken from Shougang Shuicheng Iron and Steel (Group) Co. Limited, was investigated on basis of the fundamental theory of slag metal equilibrium reaction. The initial content of sulfur in the slag was adjusted to 2.60% mass perdent by adding analytical reagent CaS. The results show that the desulfurization degree of the high calcium slag increases obviously with the increase of temperature in the range 1593-1743K, and so the sulfur partition ratio. When the holding time of the hot metal and slag at controlled temperature was extended from 120 min to 180 min in the furnace, both the sulfur partition ratio and the desulfurization degree increased markedly.