What Is Industrial Silicon

Industrial silicon, also known as metalloid silicon, is a trade name that appeared in the mid-1960s. Silicon metal is a product smelted by silica and carbonaceous reducing agent in a submerged arc furnace. The content of the main component silicon is about 98% (in recent years, the silicon content of 99.99% is also listed in metal silicon), and the rest of impurities For iron, aluminum, calcium and so on. According to the content of iron, aluminum and calcium in metalloid silicon, metalloid silicon can be divided into 553, 441, 411, 421, 3303, 3305, 2202, 2502, 1501, 1101, etc. different grades. Additional products of metalloid silicon include micro-silica fume, edge-skin silicon, black-skin silicon, metallic silicon slag, etc. Among them, micro-silica fume is also called silica fume, which is widely used in refractory materials and concrete industries.