Fused magnesia

The fused magnesite is a product of magnesite and other magnesia raw materials. High temperature equipment such as shaft kiln and rotary kiln are used for one-time calcination or two-step calcination process. The magnesia fired with natural magnesite as raw material is called sintered magnesia; magnesite and other raw materials are used to cool in the molten state by arc furnace melting The later formed is called fused magnesia; the magnesium oxide extracted from seawater is called seawater magnesia. Magnesia is one of the most important raw materials for refractory materials. It is used in the manufacture of various magnesia bricks, magnesia-aluminum bricks, ramming materials, filling materials, etc. Contains more impurities, used for paving the bottom of steelmaking furnaces.

High purity magnesia is selected from natural super magnesite ore flotation and purified by light burning, fine grinding, ball pressing, and ultra-high temperature oil shaft kiln calcination. It is a high-quality raw material for making bricks and indefinite refractories.

Medium-grade magnesia is produced from light-burned magnesia with a MgO content of 97% as raw materials, and is processed by ball pressing and high-temperature shaft kiln calcination. The product has good sintering degree and dense crystals. It is a high-quality raw material for producing mid-grade magnesium refractory products.

Fused magnesia is made by selecting special grade A natural magnesite or high-purity light-burned magnesium particles in an electric arc furnace. This product has high purity, large crystal grains, compact structure, strong resistance to slag, and good thermal shock stability. It is an excellent high-temperature electrical insulation material. Important raw materials.