Metallurgical Grade Bauxite
Bauxite is one of the most important industrial minerals and it being the aluminium ore, is the principal raw material for the production of alumina. The natural grade Bauxite of Rawmin and its group companies are presently suitable for export as simple beneficiation process and proper quality control work produces good metallurgical grade Bauxite. The simple beneficiation process which can bring down silica content of Bauxite to metallurgical end use level in this ore opens up large scope for Bauxite Mining. Majority of Bauxite marketed by Rawmin are gibbsitic in nature and easy to digest and thus can be used as sweetening ore for high pressure digestion plants. Bauxite deposits marketed by Rawmin can be considered as one of the best metallurgical grade Bauxite presently available in the world market and opens up prospect for large gibbsitic Bauxite export from India.
Standard Specifications for Metallurgical Grade Bauxite are as follows:
| Contents | Grade A % | Grade B % | Grade C % |
|---|---|---|---|
| Al2O3 | 44 % min | 42 % min | 42 % min |
| SiO2 | 8 % max | 8 % max | 7 % max |
| Fe2O3 | 18 % max | 20 % max | 25 % max |
| TiO2 | 3.5 % max | 3.5 % max | 3.5 % max |
| CaO | 3.0 % max | 3.0 % max | 3.0 % max |
| Moisture | 10 % max | 10 % max | 10 % max |
| Size 0 - 100 mm | 95 % | 95 % | 95 % |
| Monohydrates | 3 % max | 3 % max | 3 % max |
The above specs are being accepted by metallurgical refineries across the world. Rawmin believes in supplying the best and consistent quality of Bauxite to its customers and the endusers across the world, according to their needs and desired specifications, and backed up by excellent quality control, logistics and shipping support.