Calcined 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.
It can be used in aluminium industry ,precision casting, refractory materials and refractory cement.
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, aluminium industry, used for national defense, aerospace, automotive, electrical, chemical industry, daily necessities, etc.
2, precision casting, bauxite clinker made after mold precision casting processed into fine powder, used in military industry, aerospace, communications, instrumentation, machinery and medical equipment department.
3, used for refractory products – high bauxite clinker as high as 1780 ℃, refractoriness strong chemical stability, good physical properties.
4, aluminum silicate refractory fiber with light weight, high temperature resistance, good thermal stability, low thermal conductivity, heat capacity is small and the advantages of resistance to mechanical shock. Used in iron and steel, nonferrous metallurgy, electronics, petroleum, chemical, aerospace, atomic energy, defense and other industries. It is the high alumina clinker in the melting temperature of about 2000 ~ 2200 ℃ high temperature electric arc furnace, via high pressure of high temperature melting, high-speed air or steam injection, cooling, became a white cotton – silicate aluminum refractory fiber. It can be pressed into fiber blanket, board or woven cloth instead of smelting, chemical industry, glass and other industrial furnace lining brick. Firefighters available refractory fiber cloth to make clothes.
5, magnesia and bauxite clinker as raw material, adding proper binder, used for pouring ladle whole ladle lining has particularly good effects.
6, manufacture alumina cement, abrasive materials, ceramic industry and chemical industry can be of aluminum 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.
