Products Parameters
| Type | Chemical Composition (%) | ||||
| Si | Al | S | P | C | |
| ≤ | |||||
| Silicon Slag 35-38 | 35-38 | 5 | 0.1 | 0.05 | 5 |
| Silicon Slag 38-42 | 38-42 | 5 | 0.1 | 0.05 | 5 |
| Silicon Slag 42-47 | 42-47 | 5 | 0.1 | 0.05 | 5 |
| Silicon Slag 50-55 | 50-55 | 5 | 0.1 | 0.05 | 5 |
| Silicon Slag 55-60 | 55-60 | 5 | 0.1 | 0.05 | 5 |
| Silicon Slag 60-65 | 60-65 | 5 | 0.1 | 0.05 | 5 |
| Size | 10-50mm 90% min/10-70mm 90% min /10-100mm 90% min | ||||
Products Description
Silicon slag mainly comes from the industrial production process of silicon, such as the extraction of silicon ore and the smelting of silicon metal. In these processes, after the silicon element is extracted, the remaining solid residue is silicon slag. According to different sources and uses, silicon slag can be divided into industrial silicon slag, solar silicon slag, semiconductor silicon slag and other types. Although these silicon slags have different forms, they all contain high silicon dioxide content and have recycling value.
Silicon slag has a series of unique physical and chemical properties, which make it widely used in many industrial fields. The main component of silicon slag is silicon dioxide (SiO2), which has a high content, generally 30%~70%. This makes silicon slag valuable for reuse in certain industrial fields that require high-silicon materials. Silicon slag has high hardness and heat resistance, and can remain stable in high-temperature and high-pressure industrial environments. The silicon dioxide in silicon slag is an acidic oxide with relatively stable chemical properties and is not easy to react with other substances. Some silicon slags treated by specific processes have strong adsorption and can be used in environmental protection fields such as wastewater treatment and soil improvement.
Silicon slag can be used to make building materials such as cement, concrete and blocks. Since silicon slag contains a high content of silicon dioxide, it can improve the strength and durability of these building materials, thereby improving their overall performance. Silicon slag has the function of desulfurization and deoxidation in steel smelting. Sulfur and oxygen are harmful impurities in steel, which will affect the quality and performance of steel. The alkaline oxides in silicon slag can react with sulfur dioxide to form sulfates, thereby achieving desulfurization; at the same time, the silicon element in silicon slag can combine with oxygen to play a deoxidation role. In addition, silicon slag can also be used to remove other impurities in the steel smelting process and improve the purity and quality of steel.
High-quality silicon slag can also well increase the furnace temperature and increase the fluidity of molten iron, so it can be used to recycle pig iron from steel slag. Silicon slag can be used to produce chemical raw materials such as diatomaceous earth, silane and other organosilicon compounds. These compounds have a wide range of applications in the chemical industry, such as diatomaceous earth can be used in adsorbents, catalyst carriers and other fields; silane can be used in high-tech fields such as semiconductor manufacturing and solar cell production.
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