Anyang Hongshun Industrial Co., Ltd.

Silicon slag is a byproduct of the production of metallic silicon and ferrosilicon, typically containing 45%-68% silicon and other components. Our company can customize silicon slag products with silicon contents ranging from 30% to 70% according to customer requirements. Silicon slag is the residue left after silicon ore refining and still contains a significant amount of silicon. Silicon slag of varying specifications has different applications and possesses high inherent value, including recycling as a deoxidizer. Silicon slag can be used as a more economical alternative to ferrosilicon. Suitable for electric furnace and converter steelmaking, it possesses strong deoxidation and desulfurization capabilities, effectively improving molten steel fluidity, purifying it, reducing impurities in steel, and lowering production costs. Silicon slag classification: Silicon slag can be divided into two categories: metallic silicon slag and ferrosilicon slag. Silicon slag typically has a silicon content between 50% and 70%, and particle sizes range from 0-5mm to 0-10mm. Customization is also possible. Silicon slag with a silicon content of approximately 50% can be used in industries such as foundry, steelmaking, and deoxidation, effectively reducing production costs and improving efficiency. Silicon slag is primarily used as a deoxidizer and raw material for industrial silicon purification. Its use as a deoxidizer can reduce costs and increase profits. Due to its low price and high silicon content, it is a preferred choice for steel companies purchasing ferroalloy raw materials. Silicon slag also excels in desulfurization. Its high content of alkaline oxides reacts with sulfur dioxide to form sulfates, and its slurry can be used for flue gas desulfurization. Silicon slag can also be recycled to produce pig iron and ordinary castings. It effectively raises furnace temperatures, improves molten iron fluidity, provides high-quality slag removal, enhances labeling, and improves the toughness and machinability of castings. In the electric furnace refining of stainless steel, stainless steel manufacturers use silicon slag as a reducing agent to increase efficiency and yield. Silicon slag production process: Our factory produces silicon carbide using silicon, petroleum coke, and sawdust as the primary raw materials. We formulate different raw materials based on the grade of silicon carbide, process them in a 2000°C electric furnace, and then process them according to customer specifications. The silicon slag can be recycled back into the furnace for recrystallization and purification, enabling the reuse of silicon materials and maximizing their value. There are also various methods for extracting industrial silicon from silicon slag. First, a manual hammer is used to separate the distinctly light and dark silicon slags in the silicon slag, and then further separation is performed using metallurgical material selection principles. The second step requires smelting and separation through chemical reactions, primarily to separate impurities from the molten silicon. How to select high-quality silicon slag quickly by color? Silicon slag is mainly a carburized ferroalloy product, and its internal elements are mostly silicon slag (SiC). Generally, products with a higher silicon slag content are greener in color, while products with a lower silicon slag content are grayer in color. Silicon slag with a silicon slag content of 50% to 90% will turn black. Therefore, when selecting silicon slag, you can look at the color of the silicon slag product and quickly select high-quality silicon slag by the color of the silicon slag.