Production process of refired magnesium oxide

Production process of magnesia in heavy firing: Magnesia in heavy firing is mainly made from natural magnesite with 46% content, calcined in high temperature kiln.

USES of refired magnesia: refired magnesia is mainly used to make magnesia bricks and raw materials for producing unshaped refractory materials. The finished products are used for steelmaking, electric furnace bottom and ramming furnace.

Magnesia is mainly made of 46.5% magnesite, calcined by shaft kiln at 1500℃ to 800℃ or so. Products belong to tan color, dead burned magnesia products mainly contain the composition of the magnesium oxide, calcium oxide, silicon oxide, ferric oxide, 3 oxidation 2 aluminium, caustic soda, dead burned magnesia Mgo style magnesium oxide main content are 80%, 82%, 85%, 88%, 90%, 91%, 92%, 93%, calcium oxide composition at about 2.5% of the dead burned magnesia, dead burned magnesia the silica component between 3.5% and 7%, ferric oxide of dead burned magnesia content is between 0.8% and 1.5%, 3 oxidation 2 aluminium of dead burned magnesia content is about 1%, The content of caustic soda in refired magnesia is below 1%. The refired magnesia is mainly used in brick making and the main ideal raw material for the production of amorphous refractory materials. In addition, the refired magnesia products can also be used in steelmaking, electric furnace bottom and ramming furnace lining industries.

Dead-burned magnesia main varieties have a content, contents of 85, 87%, 80% and 90% levels, contents of 91%, 92% and 93% levels, these varieties of dead burned magnesia mainly choose 46.5% to ShangLing magnesite stone, through sintering kiln firing when heated to 1400-1800 ℃ Mg (CO3) complete decomposition, generate periclase, become hard reddish brown dead-burned magnesium, it has the very high refractoriness. Refired magnesia is mainly used in magnesia brick, steelmaking, electric furnace bottom and ramming furnace lining.