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 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%to88%.The heating is carried out in rotary kilns.
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.
Bauxite is one such sedimentary rock which is widely used for the manufacturing of aluminium by various industries such as the chemical industry, refractory, abrasive, cement, steel, and petrol industry amongst others. In chemical, bauxite along with alumina is used in the manufacturing of aluminium chemicals. In refractory, it is used as a raw material for making several products. Al2O3--92.06; Fe2O3--1.14; TiO2--3.86; SiO2--2.04; K2O---0.16; Na2O---0.022 CaO---0.074; MgO--0.055; AP--5.02; BD----3.68g/cm3
Bauxite is one such sedimentary rock which is widely used for the manufacturing of aluminium by various industries such as the chemical industry, refractory, abrasive, cement, steel, and petrol industry amongst others. In chemical, bauxite along with alumina is used in the manufacturing of aluminium chemicals. In refractory, it is used as a raw material for making several products.
We are direct to mining in Guine. We can supply AluminumBauxite around 5 Million MT per year. Payment Non Transferable LC. Price: 34,50 USD FOB Konta Port
Commodity: Bauxite ore gibsitte-trihydrated in Bulk Specifications: Alumina (A2O3): 46% Silica (SiO2) : 2.43% Iron (Fe2O3): 22.27% CaO: 0.05% Lossonignition: 25.74% Moisturecontent: 5.64% Sizes0mm -300mm: 95.50% Origin: Guinea Price C.I.F: Kindly suggest an Target Price for CIF/MT AWSP; SHIPMENTS WILL BE BY WAY OF 200.000 METRIC TON VESSEL THE FIRST SHIPMENT WILL BE BETWEEN 30 AND 45 DAYS FOLLOWING CONFIRMATION, VERIFICATION, AUTHENTICATION OF AN OPERATIVE PAYMENT INSTRUMENT IN A FORMAT ACCEPTABLE FOR THE SELLER AND THE SELLERS BANK Minimum shipment: 180,000 MT / Month Shipment, delivery and Payment: Irrevocable, divisible revolving letter of credit, covering the cost of one-month shipment. Loading Port: Katoungouma / DapillonPorts - BOKE (Guinea) Inspection: BY SOCIT GNRALE DE SURVEILLANCE (SGS) INSPECTION SERVICES/ INSPECTS AND VERIFIES THE QUANTITY, WEIGHT AND QUALTIY OF TRADED GOODS. Certifications: CERTIFICATES OF GOST, SABS ETC. ARE NOT INCLUDED IN THE PRICE. Shipping Vessel Requirements: The Seller shall ideally nominate vessels that have the following characteristics: Dead Weight Tonnage: 150,000 DWT to 185,000 DWT Length: 230 m to 295 m Beam: 35 m to 47 m Loaded Draft: 15 m to 20 m Specifications: The product being supplied shall be fit for low temperature as well as high temperature refineries as per inspection certificate issued by Societe Generale de Surveillance (SGS) and shall meet the following specification or more. Procedures: a) Buyer issues LOI b) Seller issues FCO c) Buyer signs, Seals and returns FCO d) Seller issues Draft Contract e) Buyer signs page per page Draft Contract and returns to seller. f) Seller issues final Contract and sends original copy to Buyer and both Seller and Buyer deposit their signed SPA contract at their respective Banks. g) Within 48 hours of signing the Final Contract, Buyer's Bank issues and sends by swift, a non-operative letter of Credit (L/C) to the Seller's Bank. h) Seller place Performance Bond and L/C now becomes operative i) Loading starts 30 days after confirmation of L/C.
As we all know, China is the world's leading supplier of bauxite, producing over three million tons per year for refractory, abrasive, and welding applications. Calcined bauxite is made of excellent bauxite ores, fired in a kiln to impart its superior abrasive qualities, hardness, and long-term frictional resistance. This materials are in stable index, homogeneous structure and excellent high-temperature performance. Its high alumina and low iron make calcined bauxite be the ideal raw material in refractory and abrasive products.
Welding grade bauxite Welding grade bauxite has tight regulation on presence of sulfur and phosphorus which are detrimental to the weld. When present at high concentrations, they induce porosity and cracking, and at lower concentrations, they adversely affect the impact strength of the weld. And moisture for welding grade bauxite should not exceed 0.5% because the potential for any moisture present withthin the flux to reduce to hydrogent, if exposed to a welding arc, the molten weld pool absorbs the hydrogen and will induce brittleness into the weld. Application Welding fluxes are a small but valuable market for calcined bauxite. Techniques for submerged arc welding require the use of a granular flux to shield the molten weld pool rom the atmosphere during the weldâ??s application or pacement. Various proprietary compositions exist and in some cases calcined bauxite is incorportated into these formulations. Calcined bauxite may, in some instances, make up to 25% of the welding flux. Specification for snw83 calcined bauxite Chemical analysis Al2o3: min 83% Fe2o3: max 2.0% Sio2: max 9.0% K2o: max 0.3% S: max 0.02% P: max 0.05% Available grain size 250mesh; 325mesh; 600mesh; 800mesh; 1000mesh; 2500mesh; or as customer's requirement. Package 1mt jumbo bag Standard exporting package for sea transportation or air delivery Special packing requirement is acceptable.
Product name: Raw bauxite ore alumina rate 45-60% Place of origin: Lao Export from: Chu Lai Port, Vietnam Chemical Composition: Fe2O3 (20%) & Al2O3 (50%) & SiO2 (max 5%), (CaO, MgO - low percentage). Usage: Refractory/metallurgical/ceramic industries. Testing: SGS/Bureau Veritas Moisture: 0.5-1.5%. We can offer shapes fines (powder) bauxite ore for sale. We have 250,000 tons per month available. Looking for a month/ a year or more contract with possible extension for a long term partnership. Delivery time: 7-10 working days
We are exporter from India for Bauxite 47% minimum.
Bauxite Al2o3-49/50%, sio2 < 3%, fe2o3 - 12 to 14% Tio2 < 5%, cao < 3 %, mgo < 3%, loi - 27% Size 00 to 125 mm, bulk packing, shipment size 30, 000 mts to 40, 000 mts(+/- 10%)
Al203: 48% Sio2: 3%max Fe203: 25%max Tio2:5%max Loi: 25%max 100000 mt
Licensed Bauxite Mining Company in Malaysia
Bauxite is also called the alumina or bauxite, main ingredients are aluminum oxide, hydrate alumina containing impurities, is a kind of soil minerals, white or gray, brown yellow or light red by iron.
Summary Bauxite also known as alumina and bauxite, main component is aluminum oxide, hydrated alumina containing impurities, is a kind of earthy mineral. White or gray white, yellow or pale red as a result of iron. Density 3.9 ~ 4g/cm3, hardness 1 ~ 3, opaque, brittle, very difficult to melt. Insoluble in water, soluble in sulfuric acid, sodium hydroxide solution, mainly used in aluminum smelting, refractory materials. Referred to in the refractory industry bauxite is usually refers to the calcined Al2O3>=48%, and contain low Fe2O3 of bauxite, alumina clinker is after Calcined Bauxite Mine. Clinker is pale yellow and dark grey, it is mainly used for high alumina refractory materials, can also be used to make fused corundum. Classification of bauxite Calcined Bauxite by different calcining kiln is divided into: The shaft of bauxite; The converter bauxite; Round kiln bauxite. Use of bauxite 1, refining - aluminum industrial alumina used in national defense, aviation, automobile, electrical appliances, chemical industry, daily necessities, etc.. 2, precision casting, bauxite is processed into fine powder and made into mold casting, used in military, aerospace, communications, instrumentation, machinery and medical equipment department. 3, used for refractory products -- high alumina bauxite refractory high degree of up to 1780 DEG C, strong chemical stability, good physical properties. 4, aluminum silicate refractory fiber - bauxite has light weight, high temperature resistance, good thermal stability, low thermal conductivity, heat capacity of small and resistance to mechanical vibration and other advantages. Bauxite for iron and steel, nonferrous metallurgy, electronics, petroleum, chemical, aerospace, atomic energy, defense and other industries. It is to high Al clinker put into the melt temperature is about 20 to 22 DEG C high temperature electric arc furnace, the melting in high temperature, high pressure high speed air or steam spray blowing and cooling, the white cotton, aluminium silicate refractory fibers. Bauxite can be pressed into refractory fiber blanket, plate or woven cloth instead of smelting, chemical, glass and other industrial furnace lining. Firefighters can make clothes with refractory fiber cloth. 5, alumina magnesia and bauxite as raw material, add appropriate binder, bauxite for pouring ladle lining the whole barrel effect is very good. 6, to produce alumina cement, abrasive materials, ceramic industry and chemical industry can be a variety of aluminum compounds.
Bauxite ore Al203 - 57-60%, Sio2- 2-4%max.,TiO2 3%max. FOB Turkey We have 57-60% Al2O3 Bauxite ore. We only offer FOB Turkey base. Buyer need to arrange own vessel. 15,000 tons per month. or 50,000 tons every 3 months other 2nd grade bauxite Al203 50 % min , SiO2 8-10%
Commodity : Bauxite Ore Description : Grade Bauxite (Al2O3) Rejection Below 56% + TYPE : Diasporite Bauxite Ore Bauxite Ore Specification %AL2O3 57,00 min - %AL2O3 59,00 %SiO2 4,00 max SIZE 0-50mm
Commodity : bauxite ore Description : grade bauxite (al2o3) rejection below 50% + Type : hematitis / diasporite bauxite ore Bauxite ore specification %al2o3 50, 00 min %sio2 8, 00 max %fe2o3 21.00 max Size 0-2000mm Commodity : bauxite ore Description : grade bauxite (al2o3) rejection below 49% + Type : hematitis / diasporite bauxite ore Bauxite ore specification %al2o3 47, 00 min %sio2 9, 00 max %fe2o3 20.00 max Size 0-200mm Commodity : bauxite ore Description : grade bauxite (al2o3) rejection below 48% + Type : hematitis / diasporite bauxite ore Bauxite ore specification %al2o3 45, 00 min %sio2 9, 00 max %fe2o3 21.00 max Size 0-200mm (FOB Delivery) Origin Turkey Products : Grey Cement Bagged cement in sling bags, Grey Cement in big bags, Bulk Cement, Portland Clinker, Gypsum Stone, Bauxite ore, Basalt Crushed Stone, Dolomite, Marble chips, Limestone, Slaked lime, quicklime, Calcite Loading : Turkey Ports (Mediterranean Ports,Aegean Ports, Marmara Ports,Black Sea Ports )
Al2O3 86-80% available in different grades as per requirement
Sintered over 1800¡æ, anti-erosion, corrosion resistance, anti-strip , good slag resistance , high thermal shock resistance , high temperature resistance 325mesh 25kg 50kg 1ton
