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TANG Zhonghe GUO Shangxing CHEN Yongding Central Iron and Steel Research Institute , Ministry of Metallurgical Industry , Beijing , China [Originally published in ACTA METALL SIN (CHINESE EDN) 24 (5) 1988pp B325—B330 , [received 18 May 1987 , in revised form 26 November 1987]
金属学报(英文版)
The liquid iron containing elements Nb,Mn and Si has been equilibrated with MgO-SiO_2-MnO slag melts at 1600℃ in a Mo wire-wound resistance furnace with a duration of 4h.The oxygen activities in liquid iron were measured with oxygen sensors.Using the known equilibrium constants of concerning reactions and the oxygen activities in liquid iron,the activities of components in the slag melts can be calculated.It was found that the par- tition ratios of Nb.Mn and Si have a close linear relationship with α_(FeO) in logarithmic scale.The dependence of Nb partition ratio on mole fractions of the slag components was al- so obtained.
关键词: MgO-SiO_2-MnO slag , null
唐仲和 , 郭上型 , 陈永定
金属学报
含有Nb,Mn和Si的铁液同MgO-SiO_2-MnO熔渣在1600℃充分反应4h达到了平衡。用定氧测头测定了铁液中的氧活度。利用已知的有关化学反应的平衡常数、铁液成分和氧活度,计算出熔渣组元的活度。本文发现,Nb,Mn和Si的平衡分配比同α_(FeO)的对数值之间有良好的线性关系。同时给出了Nb分配比同熔渣组元摩尔分数间之关系。
关键词: MgO-SiO_2-MnO系熔渣 , equilibrating partition ratio
