Calcined bauxite does not belongs to the group of electro-corundum, as it is neither smelted nor fused. It is calcined in a rotary kiln at a high temperature (~ 1500 °C) to extract water, which increases its hardness.
CALCINED BAUXITE SANDBLASTING / REFRACTORY
TYPICAL CHEMICAL ANALYSIS
TYPICAL PHYSICAL PROPERTIES
Hardness 9 mohs
Grain shape Blocky, with sharp edges
Specific gravity Approx. 3,2 g/m³
Pressure blast systems
Injection blast cabinets
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