Slag material is a by-product from production of silicon metal of ≥99% purity.
To ensure the quality of the silicon metal, top portion of the melt is separated when draining from the electric-arc furnace.
The less pure portion of silicon metal typically contains higher contents of iron, aluminum, calcium and other slag.
With the employment of density separation machines, different grades of silicon slag are segregated efficiently.
2.The usage of the silicon slag
The silicon slag is much cheaper than ≥99% purity silicon metal, and has many industrial applications. For example,It is
Used as de-oxidizing agent in steel production to reduce oxygen levels in the melt via reaction such as
Si +20(in liquid Fe)- - > Si02
(Si02 is formed as a solid dispersed in molten Fe, and subsequently floats to the surface of the melt. It is removed by either skimming or by draining molten iron from the bottom) ;
Used as de-oxidizing agent in the production of magnesium, chromium and other metals via the same mechanism;
Used in the production of the lower grade of Si3N4 in a cost effective manner, the material is suitable for refractory applications such as refractory bricks and other high-temperature applications;
An economical feedstock in the manufacture of silica sol or colloidal silica;
A low cost feedstock in the manufacture of organosilyl derivatives and silicone products
3. The chemical composition of the silicon slag
4.The size of the silicon slag
10-60mm, 1-3mm, 0-3mm or as requirements
5.The packaging of the silicon slag
1MT P.P Woven Bag net each
6.The picture of the silicon slag
The introduction of our company
Henan Star Metallurgy Materials Co., Ltd., founded in 2003, is located in Anyang, Henan
Province. Henan Star Metallurgy Material Limited Company specializing in ferro silicon,calcium silicon, cold-rolled rebar equipment with high ductility production and sales.
It is a manufacturing company directly subjected to the Anyang Star Metallurgy Material
The factory covering an area of 80 square kilometers, it has a complete set of modern production equipment.
Relying on the academic advantages of Star Metallurgy Material Institute and advanced stableproduction progress, this company can provide 1,000,000 tons of high qualified alloy series productsannually, such as ferrosilicon, silicon metal, calcium silicon, silicon carbide, metal alloy powder, etc.
The company also engages in the export of refractory materials, steel products and machinery equipment, machinery equipments include equipment for ferro alloy plant using and cold rolled rebar equipment with high extensibility.
Our products are sold to dozens of countries and regions.