Refractory Grade Calcined Bauxite Aggregate For Industrial Applications
Applications of Calcined Bauxite and Bauxite Powder
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Aluminum Production: Crucial for the extraction and production of aluminum metal.
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Precision and Investment Casting: Bauxite fines can be utilized to create molds for high-accuracy casting processes.
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Refractory Materials: High alumina bauxite offers excellent refractoriness, reaching temperatures of up to 1780°C, and demonstrates outstanding chemical stability and mechanical strength (Al2O3 ≥ 48% with low Fe2O3 content).
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Aluminosilicate Refractory Fiber: When high alumina bauxite grog is subjected to temperatures of 2000°C-2200°C in an electric arc furnace, it melts to form aluminosilicate refractory fiber, which can be processed into blankets, boards, and textiles.
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Lining for Steel Ladles: The combination of magnesia and bauxite grog with binders enhances the performance of linings in molten steel ladles.
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Bauxite Cement Production: Serves as a primary component in the formulation of bauxite cement.
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Abrasive Manufacturing: Plays a significant role in the production of abrasive materials.
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Ceramics Production: Utilized in the manufacture of a wide variety of ceramic goods.
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Chemical Manufacturing: Employed in the synthesis of various aluminum compounds.
Physical and Chemical Index of High Alumina Calcined Bauxite Powder
| Product Code | Chemical Composition (Mass Fraction),% | Bulk Density g/cm’ | Water Absorption Rate % | ||||
| Al2O3 | Fe2O3 | TiO2 | CaO+MgO | K2O+Na2O | |||
| GL-90 | ≥89.5 | ≤1.5 | ≤4.0 | ≤0.35 | ≤0.35 | ≥3.35 | ≤2.5 |
| GL-88BA | ≥87.5 | ≤1.6 | ≤4.0 | ≤0.4 | ≤0.4 | ≥3.20 | ≤3.0 |
| GL-88B | ≥87.5 | ≤2.0 | ≤4.0 | ≤0.4 | ≤0.4 | ≥3.25 | ≤3.0 |
| GL-85A | ≥85 | ≤1.8 | ≤4.0 | ≤0.4 | ≤0.4 | ≥3.10 | ≤3.0 |
| GL-85B | ≥85 | ≤2.0 | ≤4.5 | ≤0.4 | ≤0.4 | ≥2.90 | ≤5.0 |
| GL-80 | >80 | ≤2.0 | ≤4.0 | ≤0.5 | ≤0.5 | ≥2.90 | ≤5.0 |
| GL-70 | 70~80 | ≤2.0 | — | ≤0.6 | ≤0.6 | ≥2.75 | ≤5.0 |
| GL-60 | 60~70 | ≤2.0 | — | ≤0.6 | ≤0.6 | ≥2.65 | ≤5.0 |
| GL-50 | 50~60 | ≤2.5 | — | ≤0.6 | ≤0.6 | ≥2.55 |
≤5.0 |
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