Calcined Bauxite is produced by sintering high-alumina bauxite in rotary, round or shaft kilns at high temperatures of 1600℃-1800℃. This process of calcining (heating) bauxite in kilns removes moisture and gives Calcined Bauxite its high alumina content and refractoriness, low iron, and grain hardness and toughness. Rotary kiln bauxite (aluminous soil; rotary kiln bauxite), also known as alumina or rotary kiln bauxite, hydrated alumina containing impurities, main component is its composition of alumina is extremely complex, a variety of geological sources vary the floorboard of the hydrous alumina ore.As water soft diaspore, monohydrate hard diaspore and sanshui diaspore (Al2O3 · 3 h2o);Have a plenty of diaspore and kaolinite (2 sio2, Al2O3, 2 h2o) company;Some is given priority to with kaolinite, and with higher content of kaolinite, the form for general rotary kiln bauxite or kaolinite clay.rotary kiln bauxite is generally formed by the chemical weathering or exogenous, there are few pure mineral, mineral always contains some impurities, more or less contain clay minerals, iron ore, titanium minerals and clastic heavy minerals, etc.
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
Application Of Calcined Bauxite Ore:
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
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.
