Calcined Bauxite 87% Refractory Grade Bauxite Shaft Kiln Bauxite use in super duty refratory bricks
Raw Bauxite , Rotary Kiln Bauxite , Calcined Bauxite 87 %
Details information
Bauxite is a mixture of minerals that contain various concentrations of hydrated aluminum oxides, as well as impurities. The primary ore minerals are gibbsite (alumina tri-hydrate), boehmite and diaspore (alumina monohydrates).
Gibbsite-rich bauxite is preferred as it can be refined at lower digestion temperatures than the other types of alumina bearing minerals.
Bauxite is usually reddish-brown, but can also be white, tan, and yellow, depending on the type and concentration of iron minerals present. It also has a wide range of textures, but is typically dull to earthy in luster and can look like clay or soil.
Physical And Chemical Properties
Shaft Kiln Bauxite
| Items | Al2O3 | Fe2O3 | B.D. |
| 86 | 86% min | 2% max | 2.9-3.15 |
| 85 | 85% min | 2% max | 2.8-3.10 |
| 84 | 84% min | 2% max | 2.8-3.10 |
| 83 | 83% min | 2% max | 2.8-3.10 |
| 82 | 82% min | 2% max | 2.8-3.0 |
| 80 | 80% min | 2% max | 2.7-3.0 |
| 78 | 78% min | 2% max | 2.7-2.9 |
| 75 | 75% min | 2% max | 2.6-2.8 |
| 70 | 70% min | 2% max | 2.6-2.8 |
| 50 | 50% min | 2% max | 2.5-2.55 |
Rotary Kiln Bauxite
| Itams | Al2O3 | Fe2O3 | B.D. | K2o+Na2o | CaO+MgO | TiO2 |
| 88 | 88% min | 1.5% max | 3.25 min | 0.25% max | 0.4% max | 3.8% max |
| 87 | 87% min | 1.6% max | 3.20 min | 0.25% max | 0.4% max | 3.8% max |
| 86 | 86% min | 1.8% max | 3.15 min | 0.3% max | 0.5% max | 4 % max |
| 85 | 85% min | 2.0% max | 3.10 min | 0.3% max | 0.5% max | 4% max |
| 83 | 83% min | 2.0% max | 3.05 min | 0.3% max | 0.5% max | 4% max |
| 80 | 80% min | 2.0% max | 3.0 min | 0.3% max | 0.5% max | 4% max |
| 78 | 75-78% | 2.0% max | 2.8-2.9 | 0.3% max | 0.5% max | 4% max |
Round Kiln Bauxite
| Itams | Al2O3 | Fe2O3 | B.D. | K2o+Na2o | CaO+MgO | TiO2 |
| 90 | 90% min | 1.8% max | 3.4 min | 0.3% max | 0.5% max | 3.8% max |
| 89 | 89% min | 2.0% max | 3.38 min | 0.3% max | 0.5% max | 4% max |
| 88 | 88% min | 2.0% max | 3.35 min | 0.3% max | 0.5% max | 4% max |
| 87 | 87% min | 2.0% max | 3.30 min | 0.3% max | 0.5% max | 4% max |
| 86 | 86% min | 2.0% max | 3.25 min | 0.3% max | 0.5% max | 4% max |
| 85 | 85% min | 2.0% max | 3.20 min | 0.3% max | 0.5% max | 4% max |
| 83 | 83% min | 2.0% max | 3.15 min | 0.3% max | 0.5% max | 4% max |
Application:
Calcined bauxite is typically calssified according to its intended commercial application,such as abrasive ,cement ,chemical, metallurgical, and refractory .as raw material for use in high alumina and super duty refratory bricks and shapes ,plastics ,castable refratory, motors, gun mixes, ramming mixes, abrasive grains and other products
It is widely used various industry furnaces such as metallurgy, petrochem, hydraulic, mechnical , building material and the inner lining of thermal devices.
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