(S057)Influence of Bottom Bubbling condition on Metal Emulsion Formationin Al-Cu alloy and Molten salt system

摘要

In steelmaking process, the formation of metal emulsion in slag phase is an effective method to increase thereaction rate by increasing the reaction interfacial area. In the previous study1), Pb-chloride salt system was usedto investigate the influence of bottom bubbling condition on the metal emulsion formation, and it was revealedthat the local maxim value of gas flowrate for generating metal emulsion existed. However, the density differencebetween Pb (ρ=11.3 g/cm~3) and salt (ρ=1.9) is quite huge compared to actual operation of iron-slag system (ρ=7.0and 2.9). Therefore, Al-Cu alloy (ρ=2.7) and chloride salt were used in this study to investigate the influence ofdensity difference on the formation behavior of metal emulsion by the gas bubbling.