Loading Port:China main port
Payment Terms:TT OR LC
Min Order Qty:25 m.t.
Supply Capability:10000 m.t./month
| Place of Origin: | Shanxi, China (Mainland) | Shape: | Block | Material: | Alumina Block |
| SiO2 Content (%): | <8% | Al2O3 Content (%): | 75%-90% | MgO Content (%): | <0.5 |
| CaO Content (%): | <0.5 | Refractoriness (Degree): | 1770°< Refractoriness< 2000° | CrO Content (%): | 0.0 |
| SiC Content (%): | 0.0 | Model Number: | 75,80,85,86,87,88,90 | Brand Name: | CNBM |
| Fe2O3: | 3.0 max | K2O+NA2O: | 0.3 max | TIO2: | 0.4 max |
| CaO+MgO: | ≤0.5 | shapes: | granula and powder | bulk density: | ≥2.70 |
| H.S.code: | 2508300 | Moisture: | 0.03% max | color: | yellow,black and white granula and powder |
| application: | abrasive ,cement ,chemical, metallurgical, and refractory and so on |
| Packaging Details: | 25kg/Bag,1Mt/Bag,1.25Mt/Bag; Or as per Client's request |
| Delivery Detail: | 7-15 days upon receipt of prepayment by TT or L/C |
Calcined bauxite:
14 years producing experience;
self-owned mines;
SGS or BV report.
Calcined bauxite specification:
Grade | AL2O3 | FE2O3 | TIO2 | K2O+Na2O | CaO+MgO | Bulk density |
75 | 75min | ≤3.0 | ≤4.0 | ≤0.3 | ≤0.5 | ≥2.70 |
80 | 80min | ≤3.0 | ≤4.0 | ≤0.3 | ≤0.5 | ≥2.80 |
85 | 85min | ≤2 | ≤4.0 | ≤0.3 | ≤0.5 | ≥3.00 |
86 | 86min | ≤2 | ≤4.0 | ≤0.3 | ≤0.5 | ≥3.10 |
87 | 87min | ≤2 | ≤4.0 | ≤0.3 | ≤0.5 | ≥3.20 |
88 | 88min | ≤1.8 | ≤4.0 | ≤0.25 | ≤0.5 | ≥3.25 |
90 | 90min | ≤1.8 | ≤4.0 | ≤0.25 | ≤0.5 | |
Size: as buyer’request
Packing: usually we packing in big bag, 1.25mt/bag; we could pack as buyer’request
Calcined bauxite is one of the principal ore of aluminum. Calcined bauxite contains hydrous aluminum oxides and aluminum hydroxides, formed through the laterization of aluminous rocks in tropical and subtropical areas .calcined bauxite is obtained by calcining (heating)superior grade bauxite at high temperature (from 85OC to 1600C) .this removes moisture thereby increasing the alumina content. compared to an alumina content of about 57%to 58%in raw bauxite, calcined bauxite has an alumina content of 84%to88%.the heating is carried out in rotary kilns.
Applications
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.
