How is silicon metal 553 made?
Silicon metal 553 is produced through a carbothermic reduction - smelting process. High - purity silica, with an SiO₂ content of 99% and above, is used as the main raw material. It is mixed with carbonaceous reductants like coke, coal, charcoal, or wood chips. These are carefully selected for high fixed carbon, low ash, etc. The mixture is then smelted in a submerged arc furnace at temperatures between 1300 - 2000 °C. In this high - temperature environment, silica undergoes a reduction reaction to form silicon metal. After smelting, the molten silicon metal is cooled, solidified, crushed into appropriate particle sizes, and finally packaged for various industrial applications, especially in the aluminum industry.
silicon metal 553 Composition
| Type | Chemical Composition (%) | |||
| Si(Min) | Max | |||
| Fe | Al | Ca | ||
| Si-553 | 98.5 | 0.5 | 0.5 | 0.3 |
| Size | 10-100mm 90% MIN/10-50MM 90% MIN | |||
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