Bauxite is a naturally occurring, heterogeneous material composed primarily of one or more aluminum hydroxide minerals, plus various mixtures of silica, iron oxide, titania, aluminosilicate, and other impurities in minor or trace amounts.
Bauxites are typically classified according to their intended commercial application:� � abrasive, cement, chemical, metallurgical, refractory, etc.
The bulk of world bauxite production (approximately 85%) is used as feed for the manufacture of alumina via a wet chemical caustic leach method commonly known as the Bayer process.
Bauxite, an aluminium ore, is the world’s main source of aluminium. It consists mostly of the minerals gibbsite, boehmite and diaspore, mixed with the two iron oxides goethite and haematite.
1.1 The Buyer issues the LOI.
1.2 The Seller issues the FCO to the Buyer.
1.3 The Buyer signs and seals the FCO, then returns it to the Seller.
1.4 The Buyer returns the FCO with the Irrevocable Corporate Purchase Order (ICPO), Proof of Funds (POF), and the Seller's bank details.
1.5 The Seller issues the draft Sales Purchase Agreement (SPA) to the Buyer.
1.6 The Seller and Buyer sign the final contract (SPA).
1.7 The Buyer issues the SBLC, which will be visible to the Seller's bank.
1.8 The Buyer is responsible for providing its own inspection team on board the cargo ship. 1.9 The seller will be responsible for shipping the bauxite to the buyer's port of destination.
1.10 60 days after the seller's bank confirms receipt of the SBLC, the seller will begin loading the first vessel.
In its mineral form Bauxite, Aluminium is the most abundant metal in the earth's crust. Bauxite contains one of a variety of hydrated aluminium oxides (gibbsite, boehmite or diaspore), which are often expressed as Al2O3xH2O but are more commonly regarded as impure Al2O3. Bauxite is claylike and earthy, and ranges in colour from white to deep brown or red according to the nature and quantity of its components. The major impurities in Bauxite are iron oxides (goethite & hematite), silicon dioxide, the clay mineral kaolinite as well as small amounts of anatase (TiO2). Consequently, its composition varies considerably with alumina constituting from about 50% to about 70%. Aluminium content can be accurately and precisely determined over a broad analytical range simultaneously along with Si, Fe, Mn, Ti, Zr and up to 20+ other elements.
Item Specification
Color: Brown, yellow / light red
Granularity: 0-1/1-3/3-5/5-8 mm, 200/325 mesh
Application: Aluminium/Precision Casting/Refractory
Density: 4.3 g/cm3
Hardness: 1-3
Fe2O3 Content: 3.0% Max
CaO Content: 0.2 Max
Package: 25 kg/bag
Payment terms: T/T L/C
We offer high-quality bauxite ore with a minimum aluminum oxide (Al2O3) content of 50% and a maximum silica (SiO2) content of 5%. Our bauxite ore is extracted from reputable mines and undergoes rigorous quality control to ensure it meets international standards.
Key Features:
- High Aluminum Content: 50% Min Al2O3, ensuring maximum value for alumina refining
- Low Silica Content: 5% Max SiO2, reducing impurities and improving refining efficiency
- Competitive Pricing: Attractive pricing for bulk quantities
- Reliable Supply: Stable and consistent supply from reputable mines
Specifications:
- Aluminum Oxide (Al2O3) Content: 50% Min
- Silica (SiO2) Content: 5% Max
- Iron (Fe) Content: 10% Max
- Titanium (Ti) Content: 3% Max
- Moisture Content: 10% Max
Certifications and Compliance:
- ISO 9001: Quality management system certification
- ISO 14001: Environmental management system certification
Packing and Shipping:
- Packing: Bulk packing in 20ft or 40ft containers
- Shipping: FOB or gCIF, as per buyer's preference
Quantity:
- Minimum Order Quantity: 10,000 MT
- Maximum Order Quantity: 50,000 MT
If you're interested in purchasing high-quality bauxite ore, please don't hesitate to contact us. We look forward to hearing from you
Calcined Bauxite is obtained by calcining (heating) superior grade Bauxite at high temperature (from 850 oC to 1600 oC). 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 82 % to 86 %. The heating is carried out in rotary kilns. Calcination is done at different temperatures ranging from 850 oC to 1600 oC depending upon the customer’s application.
We export Calcined Bauxite for various applications such as refractory bricks, abrasives, steel polishing, etc. We provide consistency in quality and availability of Calcined Bauxite at extremely competitive prices.
Applications of Calcined Bauxite:
Refractory Grade Calcined Bauxite (CB - I and CB - II Grade) : To make refractory grade, Bauxite is thermally treated at 1600 oC to produce Calcined Bauxite where the Alumina content is mostly above 82%.
Brown Fused Alumina, Proppants and Road Surfacing : To make the above grades, Bauxite is thermally treated at 1000 oC - 1200 oC to produce Calcined Bauxite where the Alumina content is anywhere between 80-88% depending on the requirement.
Bauxite is a soft, whitish to reddish-brown rock consisting mainly of alumina-bearing hydroxides, oxides of iron, silicon and titanium with impurities of Ca, Mg, Cr, V, P, Ga and other elements. Raw Bauxite is a major source of aluminium. Basic alumina containing minerals of Bauxites are gibbsite Al(OH)3, Boehmite g-AlO(OH) and Diaspore a-AlO(OH). We are a major Raw Bauxite Exporter based in Maharashtra (India) and catering to the diverse demands of several middle and eastern Asian countries.
About Raw Bauxite:
The processing of Raw Bauxite is done at a number of alumina refineries in the world. Bauxite can be processed at a low-temperature autoclave digestion (145 oC to 155 oC). Raw Bauxite can be used also for sweetening stage and for non-autoclave digestion in agitators (105 oC).
About 85% of bauxite mined worldwide is used to produce alumina for refining into Aluminium metal and the balance 15% is processed and value added to make its way to other uses like refractory, chemical, cement, abrasives, etc. Aluminium is possibly the most versatile product with applications in almost every industry. Since Bauxite is the primary source for Aluminium there will always be an ongoing promising demand for the same.
Application & Uses of Bauxite:
Raw Bauxite is successfully used for metallurgical grade alumina production besides applications in the cement industry, alumina chemical, steel, alum, energy industries, flame-retardants, etc. Bauxite is used in :
- Aluminium
- Cement
- Chemical
- Blast Furnaces
- Iron/Steel Ladles, etc.
Advantages of Artha Bauxite:
Artha Mineral Resources has good sources for Gibbsitic Bauxite which requires low digestion temperature (145 oC -155 oC) making it more economical to process. Mines are also in close proximity to all-weather ports which makes it very convenient and cost effective to ship this material.
Bauxite is a soft, whitish to reddish-brown rock consisting mainly of alumina-bearing hydroxides, oxides of iron, silicon and titanium with impurities of Ca, Mg, Cr, V, P, Ga and other elements. Raw Bauxite is a major source of aluminium. Basic alumina containing minerals of Bauxites are gibbsite Al(OH)3, Boehmite g-AlO(OH) and Diaspore a-AlO(OH)
Bauxite is used in a lot of industries like 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.
Calcination is a process of heating, hence calcined bauxite is obtained by heating the high grade ore of the bauxite. Heating further removes the moisture content from the ore and thus results in the increase of the alumina content.
