How to melt industrial silicon?

Industrial silicon is an important inorganic compound with a wide range of applications, including semiconductor industry, solar cells, chemical industry, etc. Melting industrial silicon is an important step in the preparation of industrial silicon products. Let's talk about the smelting process of industrial silicon.

Industrial silicon is mainly derived from silicon dioxide ore, and its main component is silicon dioxide. The process of smelting industrial silicon is mainly divided into two stages: pretreatment before smelting and smelting process.

Pretreatment before smelting includes steps such as crushing, leaching and purification of ore. First, the ore is crushed by crushing equipment to make its particle size meet the smelting requirements. Then, the silicon dioxide is extracted from the ore by chemical leaching. During the extraction process, acid is needed to dissolve metal impurities and other impurities from the ore for the subsequent industrial silicon purification process. Finally, the residual impurities are removed through the purification process so that the silicon dioxide obtained from the ore meets the smelting requirements.

After the ore pretreatment is completed, the smelting process of industrial silicon can be carried out. The smelting process of industrial silicon usually adopts the melting reduction method. During the smelting process, the electric smelting method is generally used, that is, the smelting is carried out by arc heating. First, the pretreated ore and the reducing agent are placed in the smelting furnace, and a certain arc is established in the furnace. Under the high temperature of the arc, the ore and the reducing agent react chemically in the furnace to generate industrial silicon. At the same time, arc heating can also help to achieve the melting of the ore, so that the generated industrial silicon can flow out of the furnace smoothly.

During the smelting process, it is also necessary to control parameters such as temperature and furnace atmosphere to ensure the smooth smelting process of industrial silicon. In addition, the industrial silicon produced needs to be processed in the following ways, including cooling, solidification, crushing, screening and packaging.

In general, the smelting process of industrial silicon is a complex chemical reaction process that requires strict control and operation. Through reasonable ore pretreatment and smelting process, high-purity industrial silicon can be obtained to meet the needs of different application fields. With the continuous improvement of technology, the smelting process of industrial silicon will also be continuously optimized to provide better material support for the development of related industries.