Calcined Bauxite
CalcinedBauxiteIntroduction
Calcined Bauxite manufacturers produce Calcined Bauxite by firing (heating) the superior grade Bauxite at high temperature (from 850℃ to 1600℃). 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 75 % to 90 %. The heating is carried out in rotary kilns. Calcination is done at different temperatures ranging from 850 ℃to 1600 ℃ depending upon the customer’s application.
CalcinedBauxiteSpecifications
|
Brand |
Mainchemicalcomposition,% |
Density,(g/cm3) |
waterabsorption,% |
||||
|
Al2O3 |
Fe2O3 |
TiO2 |
CaO+MgO |
K2O+Na2O |
|||
|
GLA-90 |
≥90 |
≤1.4 |
≤4.0 |
≤0.4 |
≤0.4 |
≥3.3 |
≤3 |
|
GLA-88 |
≥88 |
≤1.5 |
≤4.0 |
≤0.4 |
≤0.4 |
≥3.25 |
≤4 |
|
GLA-85 |
≥85 |
≤1.8 |
≤4.0 |
≤0.4 |
≤0.4 |
≥3.1 |
≤4 |
|
GLA-80 |
≥80 |
≤2.0 |
≤4.0 |
≤0.5 |
≤0.5 |
≥2.8 |
≤5 |
|
GLA-75 |
≥75 |
≤2.0 |
≤4.0 |
≤0.5 |
≤0.5 |
≥2.7 |
≤7 |
CalcinedBauxiteApplications
- 2.Precisioncasting / Investmentcasting: bauxitegrogfinescanbemadeintomoldforprecisioncasting.3.Refractory:highaluminabauxite’srefractorinesscanreach1780°C.Itischaracteredbygoodchemicalstabilityandmechanicalperformance.(Al2O3≥48% with lowFe2O3)4.Aluminiumsilicaterefractoryfiber:Thehighaluminabauxitegrogcanmeltunder2000°C-2200°C intheelectricarcfurnace.Afteraseriesofprocessing,itcanbecomealuminiumsilicaterefractoryfiber, whichcanbemadeintofiberblanket,plate,cloth.5.Mixingmagnesiaandbauxitegrogwithbinderstopourthemoltensteelladleforbetteroverallliningperformance.6.Producingbauxitecement7.Abrasives8.Ceramicsindustry9.Chemistryindustryforallkindsofaluminiumcompound.
Calinced Bauxite Package:
By 1 ton jumbo bag
Oreworld trade (Tangshan) co., Ltd. is one of calcined bauxite suppliers. We provide Special Cements, Ore Products, csa cementand so on. Want to know calcined bauxite price, calcined bauxite buyersand calcined bauxite manufacturing process? Please contact us.
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