Smelting iron silicon how to reduce the impurities?
Sep 14, 2024
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1, choose high-quality raw materials: Choose high-quality raw materials is the basis for reducing impurity content. Qualified raw materials can provide high purity silicon and iron elements, while reducing the content of other impurities;
2, reasonable ingredients: according to the production needs, reasonable mix of different ingredients of raw materials, control the content of impurities in raw materials. For example, low sulfur, low phosphorus coke can be used to control the content of harmful elements in steel chips;
3, control the melting temperature and time: the appropriate melting temperature and time can promote the volatilization and decomposition of impurity elements, reduce impurity content. At the same time, high temperature smelting can also promote the reduction reaction of silicon elements and improve the yield of silicon.