What is magnesia?

Magnesite is calcined at high temperature from magnesite, bischofite or magnesium hydroxide extracted from seawater. It is a general term for the products of magnesite and other magnesia raw materials that have been treated at high temperature to reach the sintering process. Magnesite sintered from natural magnesite is made by one-step or two-step calcination process with high-temperature equipment such as shaft kiln and rotary kiln; Seawater magnesia is produced by extracting magnesium oxide from seawater after magnesite and other raw materials are melted in an electric arc furnace and cooled. Fused magnesia

Magnesite is one of the important raw materials for refractories. It is used to manufacture various magnesia bricks, magnesia alumina bricks, ramming materials, furnace repairing materials, etc., and the ones with more impurities are used to pave the bottom of the steelmaking furnace.

The high-purity magnesite is produced by flotation purification of natural super grade magnesite ore, light burning, fine grinding, ball pressing and ultra-high temperature oil shaft kiln calcination. It is a high-quality raw material for brick making refractory.

Magnesite is produced from light burned magnesia with 97% MgO as raw material through ball pressing, high-temperature shaft kiln calcination and other processes. The product has good sintering degree and dense crystallization. It is a high-quality raw material for producing medium grade magnesia refractory products.