Calcined Bauxite is a high-quality raw material for the production of shaped and unshaped refractory products. Calcined bauxite is produced by sintered raw bauxite at high temperatures (usually around 1600°C-1800°C) in a rotary kiln, round kiln or shaft kiln.
Bauxite, rock largely composed of a mixture of hydrous aluminum oxides. It is the primary ore of aluminum. Almost all of the aluminum that has ever been produced has been extracted from bauxite. Bauxite is a mixture of hydrous aluminum oxides, aluminum hydroxides, clay minerals, and insoluble materials such as quartz, hematite, magnetite, siderite, and goethite.
What’s the detail of our calcined bauxite?
1).calcined bauxite has high refractoriness, good mechanical strength and moderate slag resistance.
2).calcined bauxite is typically used in ladle working lining, tundish furniture, delta sections, general purpose repairment,aluminium melting furnace and mineral processing.
What’s the size of our calcined bauxite?
0-1mm,1-3mm,3-5mm,5-8mm,200mesh,325mesh,or as buyer’s request.
Calcind Bauxite Chemical 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 | ≥3.30 |
Clacined Bauxite Classification Introduction:
1. Classified according to the type of bauxite raw materials:
(1) raw bauxite, alumina original ore (natural sedimentary rock class).
(2) the calcined bauxite, the raw bauxite after high temperature calcination (1200 ~ 1700 ℃) is called the calcined bauxite.
2.Calssified according to the different calcining kiln where the bauxtie is divided into:
(1)Shaft kiln bauxite
(2)Rotary kiln bauxite
(3)Round kiln bauxite
3.Calcined Bauxite according to different uses for division:
(1) the refractory grade bauxite
(2) the grinding grade alumina
(3) the welding grade bauxite
Calcined Bauxite Applications:
1.Calcined bauxite in aluminium industry. Used for defense, aerospace, automotive, electrical, chemical industry, daily necessities, etc.
2.Calcined bauxite in the precision casting. Used in military industry, aerospace, communications, instrumentation, machinery and medical equipment department.
3.Calcined bauxite used for refractory products.
4.Calcined bauxite in aluminum silicate refractory fiber. Used in iron and steel, nonferrous metallurgy, oil, chemical space of atomic energy, defense and other industries.
5.Bauxite for pouring ladle whole ladle lining
6.Bauxite rock for alumina cement, abrasive materials, ceramic industry and the various compounds
7.Powdered bauxite can be fused into tiny beads at very high temperatures. These beads have a very high crush resistance, and that makes them suitable as a proppant.
Packing and storage
Packing: Double coated plastic woven / paper bag, net weight 25kg.
Big bag packing, net weight 1000kg / 1250kg per clients’ request.
Storage: Dry, ventilated, moisture proof.
Delivery
1. The sample will be send by International expresses FEDEX/DHL/UPS/TNT.
2. Full container Load(FCL): By vessel Or International Railway Transportation
3. Less Than Container Load(LCL): By vessel or By air
Payment
1. Payment: T/T, Western Union, LC, Paypal.
2. MOQ: Usually 1Tons
3. Quality Warranty: 1 years
After Sales Service:
1).We are very glad that customer give us some suggestion for price and products.
2).If any question, please let us know it by E-mail or Telephone at the first time. We can deal with them for you in time.
