TY - JOUR
T1 - Study on the foaming of CaO-SiO2-FeO slags
T2 - Part I. Foaming parameters and experimental results
AU - Ito, Kimihisa
AU - Fruehan, R. J.
PY - 1989/8
Y1 - 1989/8
N2 - In order to understand the effect of slag composition on foaming in iron and steelmaking processes, slag foaming was quantitatively studied for CaO-SiO2-FeO slags in the temperature range of 1250 °C to 1400 °C. It was found that slag foaming could be characterized by a foaming index (Σ), which is equal to the retention or traveling time of the gas in the slag, and the average foam life ( τ). The effects of P2O5, S, MgO, and CaF2 on foaming were studied. As expected, slag foaming increased with increasing viscosity and decreasing surface tension. It was found that suspended second-phase solid particles such as CaO, 2CaO SiO2, and MgO stabilized the foam and had a larger effect on foaming than changes in viscosity and surface tension for the slags studied.
AB - In order to understand the effect of slag composition on foaming in iron and steelmaking processes, slag foaming was quantitatively studied for CaO-SiO2-FeO slags in the temperature range of 1250 °C to 1400 °C. It was found that slag foaming could be characterized by a foaming index (Σ), which is equal to the retention or traveling time of the gas in the slag, and the average foam life ( τ). The effects of P2O5, S, MgO, and CaF2 on foaming were studied. As expected, slag foaming increased with increasing viscosity and decreasing surface tension. It was found that suspended second-phase solid particles such as CaO, 2CaO SiO2, and MgO stabilized the foam and had a larger effect on foaming than changes in viscosity and surface tension for the slags studied.
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U2 - 10.1007/BF02654600
DO - 10.1007/BF02654600
M3 - Article
AN - SCOPUS:0024716592
SN - 0360-2141
VL - 20
SP - 509
EP - 514
JO - Metallurgical Transactions B
JF - Metallurgical Transactions B
IS - 4
ER -