论文部分内容阅读
锰铁熔池吹氧时可能发生的各元素氧化反应有如下几个(除另有标明者外,所有热化学数据均取自[1]):2Mn(液)+O_2(气)=2MnO(固);△G_0=-195,100+42.44T………①2Fe(液)+O_2(气)=2FeO(液);△G~0=-113,800+23.64T………②2C(固)+O_2(气)=2CO(气);△G~0=-56,400-40.32T………③Si(液)+O_2(气)=SiO_2(液);△G~0=-223,800+46.08T………④还可能 Mn 和 Si 同时氧化,形成(例如)MnSiO_3,其标准自由能变化计算如下:
The oxidation of each element that may occur during the oxygen injection of the ferromanganese bath is as follows (all thermochemical data are taken from [1] unless otherwise indicated): 2Mn (liquid) + O 2 (gas) = 2MnO ( Solid); G0 = -195,100 +42.44T ......... ① 2Fe (liquid) + O_2 (gas) = 2FeO (liquid); △ G ~ 0 = -113,800 + 23.64T ......... ② 2C (solid) + O_2 ) = 2CO (gas); ΔG ~ 0 = -56,400-40.32T ......... ③Si (liquid) + O_2 (gas) = SiO_2 (liquid); △ G ~ 0 = -223,800 + 46.08T ......... It is possible that both Mn and Si are simultaneously oxidized to form, for example, MnSiO 3 whose standard free energy change is calculated as follows: