ZHENGZHOU CAIHUA KILN MASONRY INSTALLATION CO.,LTD
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High Grade Calcined Bauxite Ore
Calcined Bauxite is produced by sintering high-alumina bauxite in rotary, round or shaft kilns at high temperatures of 1600℃-1800℃. 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.
Physical and chemical index of High Grade Calcined Bauxite Ore
| Item | SNR88 | SNR86 | SNR85 | |
| Al2O3(%) | 88.0min | 86.0min | 85.0min | |
| SiO2(%) | 5.5max | 7.0max | 8.0max | |
| Fe2O3(%) | 1.6max | 1.8max | 2.0max | |
| TiO2(%) | 4.0max | 4.0max | 4.0max | |
| CaO+MgO | 0.40max | 0.40max | 0.40max | |
| K2O+Na2O | 0.40max | 0.40max | 0.40max | |
| B.D(gm/cc) | 3.25min | 3.20min | 3.10min | |
| Moisture | 0.3max | 0.3max | 0.4max | |
Photos of different size bauxite:
Packages of RK Bauxite