硫化鐵の CO による還元平衡

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The reduction equilibrium of ferrous sulphide by CO gas was investigated for the temperature range of 800∿1100℃ by means of flow method. The equation and the equilibrium constant of this reaction may be written as follows, FeS+CO=Fe+COS, K_1=pcos/pco The relation between temperature and this equilibrium constant was obtained as log. K_1=log pcos/pco=-2, 014.7/T-2.198 From this result, the relations between temperature and the epuilibrium constant of the reactions, FeS+CO_2=FeO+COS 3FeS+4CO_2=Fe_3O_4+CO+3COS were computed respectively as log K_4=log pcos/pco_2-2, 917.5/T-1.097 log K_5=log p^3cos・pco/p^4co_2=-7, 084.2/T-5.282 From these results, equilibrium diagram between pco/pco_2 and pcos for FeS was obtained. Further, the relation between temperature and the equilibrium constant of the reaction CO+1/2 S_2=COS was computed as log K_8=log pcos/p1/2s_2・pco=6, 443・5/T-5.418
社団法人日本鉄鋼協会の論文
1951-12-25