炭素飽和Mn合金溶液と各種溶滓との間の平衡と活量の計算

抄録

In order to make clear the physical chemistry of the distribution reaction of Mn and Si between alloy melts and molten slags in the production furnace of high carbon ferromanganese and silicomanganese, the Mn-Si-C_sat. and Mn-Fe-Si-C_sat. alloy melts were equilibrated with MnO-SiO₂, CaO-MnO-SiO₂, CaO-MnO-Al₂O₃-SiO₂ and CaO-MnO-Al₂O₃-MgO-SiO₂ slags. From these experimental results, following thermochemical values were calculated by using the activities obtained previously by the author and some investigators;
(1) The activities of Si in Mn-Si-C_sat. melts at 1500 and 1550°C, and in Mn-Fe-Si-C_sat. melts at 1500°C.
(2) The activities of SiO₂ in CaO-MnO-SiO₂ molten slags at 1500°C.
(3) The values of a_MnO²/a_SiO2 in CaO-MnO-Al₂O₃-SiO₂ molten slags at 1500°C.
(4) The values of a_MnO²/a_SiO2 in CaO-MnO-Al₂O₃-MgO-SiO₂ molten slags equilibrated with Mn-Fe-Si-C_sat. alloy melts at 1600°C.