Sulfide capacity of high alumina blast furnace slags

Sulphide Capacity of CaO–SiO₂–Al₂O₃–MgO System Relevant to Low MgO Blast Furnace Slags

“…5. It can be seen that Hao and Wang's model, 10) Shankar's model 5) and Young's model 8) overestimate the values of sulphide capacity although the trends are the same. The present data are in good agreement with that predicted by Zhang's model, 4) Taniguchi's model 7) and Sosinsky and Sommeville's model, 6) in which Taniguchi's model is most closed to the present work.…”

“…[4][5][6][7][8][9][10] The reported sulphide capacity models can be classified as empirical models and theoretical models, as summarized in Table 4. The comparison of experimental data along with the estimated values by those models is shown in Fig.…”

“…There is a lack of data updated for some ironmaking BF slags, e.g. high Al 2 O 3 slag resulted from using low grade iron ore. 5) Furthermore there are still large discrepancies of previous works. Sulphide capacity of such the CaO-SiO 2 -MgO-Al 2 O 3 slag system may be significantly…”

Structure Analysis of CaO–SiO2–Al2O3–TiO2 Slag by Molecular Dynamics Simulation and FT-IR Spectroscopy

“…12,13,[17][18][19] Similarly, structure and properties of slags containing TiO2 have also been investigated by steelmakers in order to understand the relationship between structure and property. 4,[7][8][9][16][17][18][20][21][22] It's reported that TiO2 can increase the viscosity of the CaO-SiO2-Al2O3-TiO2 slag under reducing atmosphere indicating that it behaves as a networkformer which can increase the polymerization of the network of the slag by Ohno and Ross.…”

Influence of TiO2 on the Viscous Behavior of Calcium Silicate Melts Containing 17 mass% Al2O3 and 10 mass% MgO

“…Iron ores consisting of significant TiO2 such as ilmenite are low cost ores, but due to the high TiO2 content its use may result in significant issues within the blast furnaces such as lower reduction degree, [1][2][3][4] changes in the liquidus temperature in slag, [5][6][7] lower residual removal by the slag, [8][9][10] and viscosity changes within the bosch and hearth. [11][12][13][14][15] However, potential benefits of TiO2 in the blast furnace slags have also been known by forming a protective layer of titanium carbo-nitride on the refractory brick and inhibiting the premature failure and erosion of the hearth.…”