Calcined Bauxite
Bauxite is a mixture of minerals that contain various concentrations of hydrated aluminum oxides as well asimpurities,which is also called calcined bauxite or sintered bauxite.Its main component is alumina,which is a hydrated alumina containing impurities and is a kind of earthy mineral.White or...
Bauxite is a mixture of minerals that contain various concentrations of hydrated aluminum oxides as well asimpurities,which is also called calcined bauxite or sintered bauxite.Its main component is alumina,which is a hydrated alumina containing impurities and is a kind of earthy mineral.White or off-white,brown or light red due to iron.Density 3.45g/cm3,hardness 1-3,opaque,crisp.Extremely hard to melt. .Insoluble in water,soluble in sulfuric acid,sodium hydroxide solution.It is mainly used for aluminum smelting and refractories.
Size of calcined bauxite
0-1mm;1-3mm;3-5mm;5-8mm;16-30mesh;30-60mesh;120mesh;200mesh;325mesh,or as buyer's request.
| Grade | AL2o3 | FE2O3 | TIO2 | K2O+Na2O | CaO+MgO | Bulk density |
| 75 | 75min | ≤3.0 | ≤4.0 | ≤0.3 | ≤0.5 | ≤2.70 |
| 80 | 80min | ≤3.0 | ≤4.0 | ≤0.3 | ≤0.5 | ≤2.80 |
| 85 | 85min | ≤2 | ≤4.0 | ≤0.3 | ≤0.5 | ≤3.00 |
| 86 | 86min | ≤2 | ≤4.0 | ≤0.3 | ≤0.5 | ≤3.10 |
| 87 | 87min | ≤2 | ≤4.0 | ≤0.3 | ≤0.5 | ≤3.20 |
| 88 | 88min | ≤1.8 | ≤4.0 | ≤0.25 | ≤0.5 | ≤3.25 |
| 90 | 90min | ≤1.8 | ≤4.0 | ≤0.25 | ≤0.5 | ≤3.30 |
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