SIlicon metal is an important industrial basic material. Silicon metal is the raw material for the production of organic silicon, non-ferrous alloys and polycrystalline silicon. China’s metallurgical grade silicon metal production capacity and output rank first in the world. And it continues to grow. At the same time, China also has the largest number of metallurgical grade silicon metal manufacturers in the world. Anyang Highrise Metallurgy Co., Ltd. is a silicon metal manufacturer. Other silicon manufacturers locate widely in many provinces in northwest and southwest China.
Silicon is the second most abundant element in the earth’s crust after oxygen. Moreover, as a basic element of modern civilization, it is promoting the rapid development of human modern industrial civilization. However, silicon in the natural environment often exists in the form of silicon oxide. Metallurgical grade silicon metal manufacturers need to purify silicon through a series of steps to make metallurgy grade silicon metal.
Metallurgical Grade Silicon Manufacturing
The production process of Silicon metal is following below three parts: mineral processing, raw material stone and smelting. Among them, mineral processing and quarrying are the basic and most important part of the entire smelting process. The purity and quality of silica will directly affect the quality of finished industrial silicon. Silicon metal manufacturers should strictly control the purity of silica.
First, the mineral processing process needs to be carried out to select the appropriate silicon ore. In this process, silica ore undergoes processing steps such as crushing, washing and screening to remove impurities. Next, enter the smelting process. The process involves a reduction reaction in a high-temperature furnace where silicon ore combines with carbon to create metallic silicon. The smelting process requires strict control of temperature and chemical reaction conditions to ensure the purity and quality of metallic silicon.
After the smelting process, silicon metal needs refining and purifying to remove residual impurities. This typically includes steps such as chemical treatment and physical separation to improve the purity and quality of the metallic silicon. Finally, the refined and purified metallic silicon will be made into finished products suitable for different applications, such as silicon metal lumps and silicon metal powders. It is worth noting that the entire production process may vary according to the specific needs and technical conditions of the metallurgical grade silicon metal manufacturer.
Finally, depending on the content of iron, aluminum, and calcium, we generally classify metallic silicon metal into several different models such as silicon metal 553, silicon metal 441, silicon 3303, and off-grade silicon metal.