Carbon Behaviour during Si Production
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First, the carbon content decreases with the increasing of silicon content in silicon phases. Second, the carbon content has no obvious trend in ferrosilicon phases. Third, the carbon element can be formed as silicon carbide in all locations in ferrosilicon furnace. Fourth, the carbon content inside the silicon and ferrosilicon phases in the location where is near the outer wall is higher than elsewhere. From the analysis, most of the silicon carbide phases are formed as big particles in the samples. However, silicon carbide phase is formed as small particles in this location. Fifth, silicon and iron can be formed as a variety of different ferrosilicon compounds in ferrosilicon furnace.