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Calcine Bauxite
Calcine Bauxite
Description:
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%.
Application:
Refractory materials: calcined bauxite is an important raw material for making refractory materials such as refractory bricks and refractory castables.
Ceramic industry: used to make high-alumina ceramic products.
Chemical industry: used as a catalyst carrier or chemical raw material.
Abrasives: used to make grinding tools and abrasives
Technical Data Sheet:
|
Grade |
Al2O3 % |
Fe2O3 % |
TIO2 % |
K2O+Na2O % |
CaO+MgO % |
Bulk density g/cm3 |
|
50-60 |
50-60 |
≤3.0 |
≤4.0 |
≤0.3 |
≤0.5 |
≥2.45 |
|
60-70 |
60-70 |
≤3.0 |
≤4.0 |
≤0.3 |
≤0.5 |
≥2.65 |
|
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 |
