What is the soaring metal silicon, and how will the future trend be?
Silicon metal, also known as industrial silicon, is a product smelted by silica and carbon reducing agent in the ore furnace, the main component silicon content is usually more than 98.5%, below 99.99%, the remaining impurities are iron, aluminum, calcium and so on. In China, usually based on the content of iron, aluminum and calcium in metal silicon, it is divided into 553, 441, 421, 3303, 2202, 1101 and other different grades.
Silicone has the highest requirements for metal silicon, requiring chemical grade, and the corresponding model is 421#, followed by polysilicon, commonly used models are 553#, 441#, and aluminum alloy requirements are the lowest, but in recent years, the demand for polysilicon has increased, the proportion has increased, and the demand for aluminum alloy has not only not increased, but also decreased. This is also a major factor in the seemingly high production capacity of metal silicon, but the operating rate is not high, and the market is seriously out of stock of high-grade metal silicon.
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