Relationship between the common optical basicity models and the sulphide capacities of CaO-Al2O3-SiO2-MgO slag

Abstract

The correlations between the sulphide capacity and the optical basicity models available in literature are reviewed. The relationship between sulphide capacity and the optical basicity was investigated on plant data collected from the BOF plant in the temperature range of 1565-1650• C. The goal of this work was to compare results given by applying common acceptable Young's, Sosinsky-Sommerville's, Tsao-Katayama's and Taniguchi's optical basicity as well as the KTH model for calculating the sulphide capacities. The present paper is focused on the thermodynamic aspect of sulphur refining CaO-Al2O3-SiO2-MgO ladle slag during LF ladle treatment. Thirty one heats were employed in the present study in real production conditions of low carbon steels.K e y w o r d s : steels, thermodynamics, analytical methods, optical basicity, sulphide capacity

Archives of Metallurgy and Materials

“…7(b) and Table 5. The melilite is a complex solid formed by akermanite Ca 2 Mg(si 2 o 7 ) and gehlenite Ca 2 Al(Alsio 7 ) [18], it was confirmed according to Xrd results. The zoom-in figure (Fig.…”

“…Although the reduction smelting requires a large amount of energy in the smelting process, it is a simpler, less processing and higher efficiency way than other processing for recovery Fe and Cu as Fe-Cu alloy to use for strengthened cast iron by coper. Copper is used as an additive element to improve mechanical properties such as hardness, abrasion resistance and corrosion resistance in the cast iron products [18,19]. Present study was focused on the manufacture of foundry pig iron with Cu content from copper slag using high-temperature reduction smelting and investigate the utilization of by-products as a reformed slag, which is giving additional value to the recycling as a Portland cement, it can decrease the cost of the reduction smelting processing of copper slag.…”

Calculation of Assimilation Process of Non-metallic Inclusions by Slag

“…The following slag-phase elements participate in this process [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]:…”