MgO飽和CaO-MgO-FeO_x-SiO_2-MnO系スラグ : 溶鉄間の硫黄分配

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Experiments have been made to study the sulfur partition between liquid iron and MgO-saturated CaO-FeO_x-SiO_2 and CaO-FeO_x-SiO_2-MnO slags at 1600℃. By using the present and previous data, the desulfurization equilibria can be expressed as functions of slag compositions and temperature in the following : log (%S)/[%S]=0.035 [(%CaO)+0.66{(%Fe_tO)+(MnO)}+0.59(%MgO)-0.37(%SiO_2)]+1,430/T-2.426 log (%S)・a_O/a_S=7.904[Λ_<th>+0.00357(%Fe_tO)]-5,343/T-4.159 log ([%O]・N_<S^<2->>)/([%S]・N_<O^<2->>)=-1.35X'_<Ca^<2+>>-1.70X'_<Fe^<2+>>-2.70X'_<Mg^<2+>>-1.66X'_<Mn^<2+>> (1600℃) It was found from these equations that the order of the desulfurization power of the basic oxides is CaO>MnO≥FeO>MgO.sulfur partitiondesulfurizationsteelmaking slagsoptical basicityFlood-Grjotheimsulfide capacity
東北大学の論文
1986-09-30