Silicon Metal

Silicon is a non-metallic element, gray, hard and brittle, with a content of about 26% of the earth's crust. Metal silicon (lump & powder), is also known as crystalline silicon or industrial silicon. It is generally used as an iron-based alloy additive.
Silicon metal manufacturing process
How is silicon metal made ? Method for producing metal silicon: Silica is used as a raw material. The carbonaceous material acts as a reducing agent. Metal silicon is smelted by a submerged arc furnace. The content of Fe in the smelted metal silicon is less than 0.5%. Its chemical reaction equation is:

SiO2 + 2C → Si + 2CO

The silicon thus obtained has a purity of 97% to 98%. Generally used in the metallurgical industry. If you want to get higher grade silicon, you need to refine it to remove impurities. Thus, metal silicon having a purity of 99.7% to 99.8% is obtained.
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