Studies on Ferro-Manganeses Slags (III). On the Apparent Equilibrium of the Si-Reducing Reaction in Producing H-C-Mn (Part 2)

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  • フェロマンガン鉱滓に関する研究（第3報）マンガン鉄製造時のSiの還元に関する見掛の平衡について（その2）

Abstract

By the same method as that adopted in the previous report, using the synthetic slags of MgO 1∼4%, Al2O3 5∼10%, this study was carried out on the relation between the “apparent equilibrium constant” of the Si-reducing reaction, KMn-Sia=(ΣMn)\sqrt[Si]⁄[Mn], and the temperature, the composition of the slags at the temperature range 1410∼1510°. The following experimental equation was obtained (The concentration was expressed by weight %): logK_Mn-Si^a=-1.318(CaO+1.39MgO)/SiO_2-7381.9/T+4.879 The experimental results of the “apparent equilibrium” of the Si-reducing reaction were compared with those of the practical data in producing H-C-Mn and some considerations were described. In addition, some results of the tests on the effect of sulphur on the “apparent equilibrium” were also described.

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