What We Serve
Product
Our Products
CALCINED BAUXITE
Mariya Enterprise manufactures various types of refractory-grade bauxites. The process of calcining (heating) bauxite with high alumina content (55% to 60% Al2O3) occurs at temperatures between 1600 and 1650°C to produce calcined bauxite. Through calcination, moisture is removed, and the alumina content is boosted by converting tri-hydrate and mono-hydrate structures (gibbsite and boehmite) into anhydrous aluminum oxide by expelling crystallization water, similar to a "Loss of Ignition" (LOI) test conducted in a laboratory.
High Friction Surfacing
Mariya Enterprise produces calcined bauxite for high-friction surfacing applications, suitable for pedestrian pathways and road surfaces, which can be applied hot or cold onto the prepared road surface.
Abrasive Bauxite
Abrasive grade bauxite, the calcined bauxite for abrasive, the most important raw material of BFA (brown fused alumina).
Refactory Grade
Bauxite in the refractory industry is typically used in ladle working lining, tundish furniture, delta sections, general purpose repairment, aluminium melting furnace and mineral processing. It’s the raw material for high alumina brick, refractory castable, ramming mix, nozzle, slide gate block, refractory motar, etc.
Refactory Grade | Other Grade | ||||
Parameters | General Grade | LF Grade-2 | Lf Grade-1 | Abrasive Grade | Road Surfacing Grade(HFS) |
Al2O3 | 78-82% Max | 84-85% Max | 87-88% Max | 83%-84% Max | 81%-84% Max |
Fe2O3 | 4.0% Max | 2.5-2.8% Max | 2.0% Max | 4.5%Max | 4.5%Max |
S1O3 | 5.0% Max | 5.0% Max | 2.0%-4.0% Max | 7%Max | 7%Max |
TiO2 | 4.5% Max | 3.0%-4.0% Max | 3% Max | 3%-4% Max | 3%-4% Max |
CaO | 2.5% max | 2.0% max | 2.0% max | 2.5% Max | 2.5% Max |
B + D | 3.2 GM/CC | 3.2 GM/CC | 3.15 GM/CC | 3.0 GM/CC | 3.25 GM/CC |
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SIZING IN CALCINED BAUXITE
Calcined bauxite fines
0-1 mm Calcined Bauxite
1-3 mm Calcined Bauxite
0-25 mm Calcined Bauxite Lumps
