Complaint
Bauxite is also called the alumina oxide,whose main ingredients are alumina, hydrated alumina containing impurities, is an earthy mineral. White or gray, brown and yellow or light red by iron.Insoluble in water, soluble in sulfuric acid, sodium hydroxide solution. Mainly used for aluminium, refractory material.
Calcined bauxite is one of the principal ore of aluminum. Calcined bauxite is obtained by calcining (heating) superior grade bauxite at high temperature (from 850ºC to 1600ºC). 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% to 88%.Besides, through calcination, the density and refractory resistance will also be improved to varying degrees. The grade of bauxite can be increased greatly.
| Chemical Analysis | % | Physical Data | |
| Al2O3 | 75-88 | Shape | Angular or Powder |
| TiO2 | 2-3 | LOI | 0.1-0.5% |
| SiO2 | 6-18 | Specific Gravity (g/cm3) | 3.70 |
| Fe2O3 | 0.5-2.5 | Bulk Density (g/cm3) | 2.90-3.25 |
| P2O5 | 0-0.3 | Moisture Content | 0.1-0.3 |
| MgO | 0-0.2 | Polished Stone Value | 70Min |
| CaO | 0-0.4 | Aggregate Abrasive Value | 10Max |
| Grade | Al2O3 | Fe2O3 | TiO2 | Bulk Density (g/cm3) | Water Absorption (%) |
| I | 87.5Min | 1.5Max | 4.0Max | 3.45Min | 0.2Max |
| II | 86.0Min | 1.8Max | 4.0Max | 3.40Min | 0.3Max |
| III | 85.0Min | 1.8Max | 4.0Max | 3.35Min | 0.3Max |
| IV | 83.0Min | 1.8Max | 4.0Max | 3.30Min | 0.3Max |
| V | 80.0Min | 1.8Max | 4.0Max | 3.25Min | 0.3Max |
1,Calcined Bauxite for refractory material
Such calcination of bauxite has the properties of high alumina, low iron, high hardness, small thermal expansion coefficient, high refractoriness, and stable thermal chemical performance, so it is the main raw material of producing alumina and artificial corundum refractory materials.
2,Calcined Bauxite for precision casting
The alumina clinker which is processed into fine powder and made into cast mould can be used in military, aerospace, communications.
3,Calcined Bauxite for aluminum refining Industry
It can be used for national defense, aviation, automobiles, electrical appliances, chemicals, daily necessities.
4,Calcined Bauxite for high friction surface coating
Calcined bauxite has been the most commonly used aggregate material used for High Friction Surfacing. The inherent nature of Calcined Bauxite resists shear stresses that lead to polishing of the road surface. Always be used in anti-akid road surface.
Besides, calcined bauxite can be also used in making refractory bricks, castable, welding flux, etc.
Professional After-Sales Service
Our after-sales engineers stationing on a long-term basis to deal with any problems our clients have, around the clock.
Top-Rank Technical Team
SEPPE technical team has 8 years of experience in technical support. They have strong skill to solve all kinds of problems.
Quick Response Within 8 Hours
We have relatively perfect global on site service network, provides quality service and practical products for you.
Perfect Quality Control System
All production and R&D of our products in accordance with ISO9001:2001.
We have a professional packaging team to ensure the integrity and safety of goods during the long transportation.
One big bag PP with HDPE liner inside with 4 loops and seaworthy and strong enough to ensure mulimanipulations and handling.
How can I get samples to check the quality?
We can provide the samples free for you, but the express cost will be on your account.
Can you do the production as customized?
Yes, we have professional technical team, the products can be made according to your required specifications.
Can we have a visit to your factory?
You're warmly welcoming to visit our plant. And please inform me your schedule time in advance, we'll pick you up and arrange the agenda for you.
If I want to be your distributor, does there any marketing support?
Yes, if your sales quantity can reach a good amount, we can offer you the bonus, brochures, attend your exhibition,marketing gift etc... all the details can be negotiated by both sides, we have much experience on it.
