Fundamental Research on Desiliconization from Molten Pig Iron by usin CL_2 and H_2, Simultaneously

研究对象是从生铁中的硅生产半导体硅的基础研究。在氢气氛中熔化含硅和碳饱和的铁，并在铁水底部引入氯气。实验结果表明：（1）反应速率与铁中硅含量的关系可用一级方程式表示。（2）反应速率与温度的关系可用Arrhenius方程表示。（3）表观活化能为60 kcal/mol。（4）流速超过50 ml/min时，反应速率不受反应气体流速的影响。（5）铁水量越大，氯气的效率越高。（6）将该方法应用于从钢水中除去铜，但是铜没有除去。

Objects of the research were fundamental studies on production of semiconductor silicon from silicon including in molten pig iron.Iron including silicon and saturated by carbon are melted in hydrogen atmosphere and chlorine was introduced into the bottom of the molten iron. Experimental results are as follows :(1)Reaction rate can be expressed as first order equation for silicon content in the iron.(2)Relation between reaction rate and temperature can be expressed by Arrhenius equation.(3)Apparent activation energy was 60 kcal/mol.(4)Over 50 ml/min of flow rate, the reaction rate was not affected by the flow rate of the reaction gas.(5)The larger amount of molten iron, the more efficiency of chlorine gas.(6)The procedure was applied to removal of copper from molten steel, however the copper did not remove.