dead burned magnesia . Raw magnesite is processed through a multiple hearth furnace and converted into calcined magnesia . Then the clinker is further processed through vertical shaft kiln or electrofusion furnace, in which the clinker undergoes densification or dead burned process. The
Provided is a method for producing a sintered, high density, dead burned magnesia from an aqueous slurry of magnesium hydroxide or a mixed magnesium hydroxide / magnesium oxide slurry,characterized inthat Ti0 2 and graphite are added to the aqueous slurry each in amount of 0.05 to 0.5 percent, preferably 0.1 to 0.3 percent, by weight of the magnesium hydroxide.
Production of Dead burned Magnesite. This can be carried out in shaft or rotary kilns, the latter being standard for the sea water product. Although magnesium hydroxide filter cake can be charged direct to a rotary kiln, prior briquetting to almond size is favoured, particularly for the very pure material.
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Dead Burned Magnesite is a raw material used in the manufacturing of refractory . Dead Burned Magnesite is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered.
Dead burned magnesia exhibits exceptional dimensional stability and strength at high temperatures. Fused magnesia is produced in a three phase electric arc furnace. Taking high grade magnesite or calcined magnesia as raw materials, 12 hours is required for the fusion process at temperatures in excess of 2750 deg C.