Kiln Calcined Bauxite for High Alumina Brick of CNBM in China
1.Structure of Calcined Bauxite Description
Bauxite (aluminous soil; Bauxite) is also called the alumina or bauxite, main ingredients are alumina, hydrated alumina containing impurities, is an earthy mineral. White or gray, brown and yellow or light red by iron. From 4 to 3.9 g/cm3 density, hardness, 1 ~ 3 is not transparent, very brittle. Very difficult to melt. Insoluble in water, soluble in sulfuric acid, sodium hydroxide solution. Mainly used for aluminium, refractory material.
2.Main Features of the Calcined Bauxite
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 there. By 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.
3. Calcined Bauxite Images
4. Calcined Bauxite Specification
| Place of Origin: | Henan, China (Mainland) | Shape: | Brick | Material: | Alumina Block |
| SiO2 Content (%): | International standard | Al2O3 Content (%): | ≥65 | MgO Content (%): | International standard |
| CaO Content (%): | International standard | Refractoriness (Degree): | 1770°< Refractoriness< 2000° | CrO Content (%): | International standard |
| SiC Content (%): | International standard | Model Number: | RL-65 | Brand Name: | cnbm |
| Fe2O3 %: | ≤2 | Refractoriness: | ≥1790°C | Apparent porosity: | ≤24% |
| Cold crushing strength (Mpa): | ≥49.0 | Refractoriness under load(0.2MPa): | ≥1500°C | Reheating Linear Change (1500°C, 2h) %: | +0.1~ -0.4 |
| Size: | 230*114*65/75 | Sample: | free | Price: | factory outlets |
5.FAQ of Calcined Bauxite
1). Q: Are you a factory or trading company?
A: We are a factory.
2). Q: Where is your factory located? How can I visit there?
A: Our factory is located in ShanXi, HeNan, China. You are warmly welcomed to visit us!
3). Q: How can I get some samples?
A: Please connect me for samples
4). Q: Can the price be cheaper?
A: Of course, you will be offered a good discount for big amount.
