Factors affecting the quality of ferrosilicon

The factors that influence the quality of ferrosilicon are the quality of the raw materials, and the impurities in ferrosilicon are often mainly derived from the ash of petroleum coke. The submerged arc furnace used to produce ferrosilicon can provide a temperature of 5000~8000K, which provides thermal and dynamic conditions for oxides such as aluminum oxide used to produce ferrosilicon. The aluminum oxide in the raw material is reduced to silicon. Some of the remaining iron goes into the slag. In the production process of ferrosilicon 75, the aluminum content is generally between 1.5% and 2.5%. The ferrosilicon refining technology can be used to reduce the aluminum content in ferrosilicon, which can be reduced by 0.1% to produce low-aluminum ferrosilicon. The factors that affect the quality of ferrosilicon in ferroalloy production are diverse, and the quality of raw materials directly affects the quality of ferrosilicon.