Many people consider silicon slag to be a useless alloy slag. In fact, silicon slag is what remains after the refining of silicon ore, which also contains a lot of silicon. Silicon slag has irreplaceable advantages. The industrial silicon slag itself is highly valuable and can be recycled and used as a deoxidiser.
Silicon slag applications:
Silicon slag is mainly used as a deoxidiser and to extract industrial silicon from silicon slag. As a deoxidiser it can reduce costs and increase profits. Silicon slag can also be used for the refining of industrial silicon and other materials. Due to its low price and high silicon content, steel producers prefer silicon slag products when purchasing ferroalloy raw materials for steelmaking. The desulphurisation performance of silicon slag is also very good. This is mainly due to the fact that silicon slag contains large amounts of alkali oxides that can react with sulphur dioxide to form sulphates, and the slurry can be used for flue gas desulphurisation.
Silicon slag has several other uses. Firstly, silicon slag can also be used for steelmaking slag refined pig iron and general foundries. Secondly, its silicon slag can raise furnace temperatures, increase the fluidity of molten iron and effectively discharge slag. Finally, in the process of remelting stainless steel in electric arc furnaces, stainless steel manufacturers use silicon slag as a reducing agent, which can increase efficiency and output.
