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Calcined Bauxite is produced by sintering high-alumina bauxite in rotary, round or shaft kilns at high temperatures. This process of calcining (heating) bauxite in kilns removes moisture and gives Calcined Bauxite its high alumina content and refractoriness, low iron, and grain hardness and toughness. Its thermal stability, high mechanical strength and resistance to molten slags make Calcined Bauxite an ideal raw material in the production of many refractory, abrasive and specialty product applications.
Grade | Al2O3 | Fe2O3 | TiO2 | CaO+MgO | ||||
Ⅰ | ≥85 | ≤1.0 | ≤4.0 | ≤0.8 | ||||
Ⅱ | ≥80 | ≤1.5 | ≤5.0 | ≤1.0 | ||||
Ⅲ | ≥70 | ≤2.0 | ≤5.0 | ≤1.0 | ||||
Size: 0-1mm, 1-3mm, 3-5mm, 5-8mm,...... |
Item | Al2o3 min | Fe2o3 max | TiO2max | Sio2max | KO2+NaO2min | CaO+MgOmin | Bulk Density | |||||||
75 | 75% | 3.0% | 4.0% | 8% | 0.3% | 0.6% | >2.7(g/cm3) | |||||||
80 | 80% | 3.0% | 4.0% | 8% | 0.3% | 0.6% | >2.8(g/cm3) | |||||||
85 | 85% | 2.0% | 4.0% | 8% | 0.3% | 0.6% | >3.0(g/cm3) | |||||||
86 | 86% | 2.0% | 4.0% | 8% | 0.3% | 0.6% | >3.2(g/cm3) | |||||||
88 | 88% | 1.8% | 4.0% | 7% | 0.25% | 0.6% | >3.25(g/cm3) | |||||||
90 | 90% | 1.8% | 4.0% | 7% | 0.25% | 0.6% | >3.25(g/cm3) | |||||||
Size:0-1mm 1-3mm 3-5mm 5-8mm or Customized |
Calcined Bauxite Applications | ||||||
1.Aluminium industry | Used for defense, aerospace, automotive, electrical, chemical industry, daily necessities, etc. | |||||
2.Recision casting. | Alumina clinker made after mold precision casting processed into fine powder.Used in military industry, aerospace, communications, instrumentation, machinery and medical equipment department. | |||||
3.Refractory products | High bauxite clinker as high as 1780 ℃ refractoriness, chemical stability strong, and good physical properties. | |||||
4.Magnesia and bauxite clinker | Adding proper binder, used for pouring ladle whole ladle lining has particularly good effects. | |||||
5.Manufacture alumina cement | Abrasive materials, ceramic industry and the various compounds can be aluminum. |
Calcined bauxite processing |
Warehouse Workshop
Production Line inspection
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