Alpha Star® Bauxite
Alpha Star® is a homogeneous calcined high alumina aggregate. Specially selected from high purity ores, the highly customised calcining process results in a dense, volume stable aggregate with low apparent porosity. The combination of lower impurities and unique processing delivers a consistent high-quality aggregate.
Alpha Star offered by EcoMinerals has the following specifications:
| % | Grade | |
| Typical | Specifications | |
| Al2O3 | 90,3 | min. 89,0 |
| SiO2 | 3,9 | - |
| Fe2O3 | 1,4 | max. 2,2 |
| TiO2 | 4,0 | max. 4,4 |
| CaO | 0,12 | - |
| MgO | 0,13 | - |
| Na2O | 0,03 | - |
| K2O | 0,23 | max. 0,6 |
| B.D. | 3,5 | min. 3,40 |
| Apparent porosity | 2,7 | - |
| Moisture | 0,10 | max. 0,5 |
Should you have further questions for quality or grain, please do not hesitate to contact us.