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用直接法研究1600℃时溶铁中Ce-S-O平衡关系,测定了Ce的脱氧、脱硫、脱硫氧常数,并进行了有关的热力学探讨.由测得数据算出Ce的溶解自由能(△G_溶~0);活度系数(γ_(Ce)~0);克原子分数和百分浓度的交互作用系数ε_(Ce)~(Ce),e_(Ce)~(Ce);生成Ce_2O_2S的自由能△G_(Ce_2O_2S)~0.
The direct relationship between the Ce-SO balance and the oxygen evolution, desulfurization and desulfuration oxygen constants of Ce at 1600 ℃ was investigated by the direct method and the thermodynamics were discussed. The calculated free energy (△ G_ (Ce ~ 0); activity coefficient (Ce ~ 0); interaction coefficient between Ce atom fraction and percentage concentration; Ce - Ce and Ce - Ce; Can △ G_ (Ce_2O_2S) ~ 0.