Steel treatment with calcium-aluminate synthetic slag and addition of titanium oxide
Keywords:Synthetic slag, Steel, Titanium dioxide, Refining, Lime, Alumina
The paper introduces the results of the experiments on synthetic slag desulphurization and deoxidizing using slag belonging to the ternary system CaO-Al2O3-TiO2. The experiments have been done in a 10 kg induction furnace. In order to obtain the reducing slag we used a mixture of lime, alumina and titanium oxide, representing 2 % of the charge weight. The experiments were done on mechanical mixtures produced according to various recipes; for each experiment, the slag was sampled in order to determine its chemical composition and the steel was also sampled, in order to determine its contents in sulphur and oxygen. The resulting data have been processed in EXCEL, which gave the correlation equations between the desulphurization and deoxidizing output and the chemical composition of the synthetic slag, respectively the ratio and sum of the oxides.
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