Products Parameters
|
Garde |
Composition |
||||
|
Si Content (%) |
Impurities (%) |
||||
|
Fe |
Al |
Ca |
P |
||
|
Silicon Metal 1501 |
99.69 |
0.15 |
0.15 |
0.01 |
≤0.004% |
|
Silicon Metal 1502 |
99.68 |
0.15 |
0.15 |
0.02 |
≤0.004% |
|
Silicon Metal 1101 |
99.79 |
0.1 |
0.1 |
0.01 |
≤0.004% |
|
Silicon Metal 2202 |
99.58 |
0.2 |
0.2 |
0.02 |
≤0.004% |
|
Silicon Metal 2502 |
99.48 |
0.25 |
0.25 |
0.02 |
≤0.004% |
|
Silicon Metal 3303 |
99.37 |
0.3 |
0.3 |
0.03 |
≤0.005% |
|
Silicon Metal 411 |
99.4 |
0.4 |
0.1 |
0.1 |
≤0.005% |
|
Silicon Metal 421 |
99.3 |
0.4 |
0.2 |
0.1 |
– |
|
Silicon Metal 441 |
99.1 |
0.4 |
0.4 |
0.1 |
– |
|
Silicon Metal 551 |
98.9 |
0.5 |
0.5 |
0.1 |
– |
|
Silicon Metal 553 |
98.7 |
0.5 |
0.5 |
0.3 |
– |
|
Off-Grade Silicon Metal |
96 |
2 |
1 |
1 |
– |
Specification granularity: natural block, 10-100mm, 10-60mm, 3-10mm, 1-3mm, 0-1mm, or customized according to customer requirements.
Packaging: Ton bag packaging (1000kg/bag) or customized according to customer requirements.
Products Description
Metallic silicon is a product smelted from quartz and coke in an electric furnace. Its main component is silicon, which is usually around 98%. In recent years, metal silicon with a silicon content as high as 99.99% has also been produced. Other impurities include iron, aluminum, calcium, etc. Metallic silicon is silver-grey, hard and brittle, with a high melting point, good heat resistance, high resistivity, and high antioxidant properties. The properties of metallic silicon are similar to those of germanium, lead, and tin, and it has semiconductor properties. It is insoluble in acid at room temperature, but easily soluble in alkali.
Metallic silicon can be used to make silicone rubber, silicone resin, silicone oil and other organic silicon compounds. These organic silicon compounds are widely used in many industries such as construction, electronics, and automobiles. High-purity metallic silicon is an important raw material for the manufacture of semiconductor materials, such as polycrystalline silicon and monocrystalline silicon. These semiconductor materials have a core position in the electronics industry and are key materials for the manufacture of integrated circuits, solar cells, etc. Metallic silicon is often used as an additive for non-ferrous alloys, such as aluminum alloys, copper alloys, etc. It can increase the strength, hardness and wear resistance of the alloy, and improve the performance of the alloy.
With the rapid development of new energy, semiconductor and other industries, the demand for metallic silicon is growing. At the same time, with the continuous advancement of technology and the improvement of environmental protection requirements, the production process of metallic silicon is also constantly innovating and optimizing to improve production efficiency and product quality, and reduce production costs and environmental impact.
The production of metallic silicon mainly adopts the carbothermal method, that is, using silica and carbonaceous reducing agent as raw materials, smelting is carried out in a submerged arc furnace. During the smelting process, the silicon dioxide in the silica is reduced to metallic silicon by carbon. Then, through the refining process, impurities are removed and the purity is improved, and finally the metallic silicon product is obtained. However, the production process of metallic silicon will produce a large amount of waste slag, wastewater and harmful gases, which need to be treated and discharged. In short, metallic silicon is a very important industrial raw material, which is widely used in many fields. With the continuous advancement of science and technology and the rapid development of emerging industries, the market prospect of metallic silicon will be broader.
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