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本文回顾了硅铁和金属硅中杂质的类型和来源，以及液态金属精炼方法的选择。这篇论文仅涉及氧化精炼的化学，中心是液态Ｆｅ－Ｓｉ合金中碳、氧溶解度和钙、铝在金属和ＣａＯ－ＳｉＯ２－Ａｌ２Ｏ３三元渣间的平衡分配。也讨论了金属中的这些元素对溶解氧的影响。以图示出的等浓度线显示１５００℃时ＣａＯ－ＳｉＯ２－Ａｌ２Ｏ３系的液相范围内钙和铝的分布数据。在精炼工艺中反应途径和动力学限制环节，可参考这些图解释。本文还叙述了避免形成氧化物夹杂所采取的措施。
This article reviews the types and sources of impurities in ferrosilicon and metal silicon, as well as the choice of liquid metal refining methods. This paper only deals with the chemistry of oxidative refining. The center is the carbon and oxygen solubility of liquid Fe-Si alloys and the equilibrium distribution of calcium and aluminum between the metal and the CaO-SiO2-Al2O3 ternary slag. The effect of these elements in the metal on dissolved oxygen is also discussed. The iso-concentration line shown shows the distribution data of calcium and aluminum in the liquid phase range of CaO-SiO2-Al2O3 at 1500 ° C. Reaction pathways and kinetic constraints in the refining process can be explained with reference to these figures. This article also describes the measures taken to avoid the formation of oxide inclusions.