Alternate Names: Dead-burned Dolomite
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Dead-burned dolomite is produced when dolomite is calcined at very high temperatures. It is used both as a refractory product in granular form to repair linings and for making the bricks used in the refractory linings of casting ladles and cement kilns.
This refractory work well for ladles because it creates MgO in solution in the slag, which provides an buffering because MgO particles in suspension provide coating protection. Any excess MgO precipitates, protecting refractories and tap holes, reducing the need for gunning and repairs.
Out Bound Links
Calcium Magnesium Carbonate, Raw Limestone
In Bound Links
Burnt Lime, Dead-burned lime
Anhydrous Boric Acid, B2O3
The calcining process is used to remove some or all unwanted volatiles from a material (e.g. H2O, CO2, SO2) and/or to convert a material into a more stable, durable or harder state. Varying temperatures are employed to calcine various materials, depending on the decomposition temperature of the vol...