Brown fused alumina is produced by the smelting of Calcined Bauxite in an electric arc furnace at temperatures greater than 2200. A slow solidification process follows the fusion, to yield blocky crystals. The melting help in removing residual carbon , Strict control over Titania levels during the fusion process ensures optimum toughness of the grains. Then The cooled crude is further crushed, cleaned of magnetic impurities in high intensity magnetic separators and classified into narrow size fractions to suit the end use.
Brown Fused Alumina is a tough, sharp abrasives which is highly suitable for grinding metals of high tensile strength. Its thermal properties make it an excellent material for use in the manufacture of Grinding wheels and refractory products. This material is also used in other applications like blasting and surface hardening.
Brown Fused Alumina is fused and crystallized under the high temperature of above 2250°C with high quality bauxite, carbon and iron as raw material.
Our product characterized by high purity, good crystal, strong fluidity, low coefficient of linear expansion, good corrosion-resistance and so on. Could not burst, no pulverization and crack in using course of refractory.
Properties: The product is a white crystalline powder or a sandy-size granularity, and a pinkish crystalline powder or a sandy-size granularity as well. Sp.gr.2.953.01g/cm3, melting point about 1000centigrade, specific heat 1.056j/gcentigradeat 18100centigrade. Its slightly soluble in water, but insoluble in anhydrous hydrogen fluoride. The content of its crystal water will be decreased while the increasing of the molecular ratio, therefore its loss on ignition will be also decreased while the increasing of the molecular ratio. After the paste of synthetic cryolite with different molecular ratio dehydrates, the loss on ignition at 800centigrade will appear 10.34%, 6.22% and 2.56% when the molecular ratio reaches 1.74, 2.14 and 2.63 reactively.
Specifications:
Appearance white powder
F 52% min
Al 12% min
Na 33% max
SiO2 0.36% max
Fe2O3 0.08% max
CaO 0.5% max
P2O5 0.03% max
SO4 0.6% max
H2O 0.4% max
Loss on ignition 2 % max
Uses: Its mainly used as a flux in the aluminum smelting by fused-salt electrolysis; also an opalizer in the manufacture of enamel; an opacifier and auxiliary solvent of glass and enamel; an insecticide of crops; a flux in aluminum alloy casting; and in the production of ferrous alloy and effervescing steel; as well as a wear-resistant filler for resin and rubber-boned abrasive wheels.
Packing & Storage: In plastic coating woven bags with plastic film inside, 25kg,40kgs, 50kgs or 1000kgs net each, or as the requirement of clients.Stored: in a cool , ventilated, dry place.
1.Brown Fused Alumina is fused and crystallized under the high temperature of above 2250
degree centigrade with high quality bauxite,carbon and iron as raw material.
Our product characterized by high purity,good crystal,strong fluidity,low coefficient of linear expansion,good corrosion-resistance and so on.Could not burst,no pulverization and crack in using course of refractory.
1.Place of original: HENAN
2.Material:AI2O3
3.Real Density: 3.9g/m3
4.Bulk density: 1.53-1.99g/m3
5.Melting point: 2250
6.Refractoriness:1900
7.Mohs hardness: 9.0
8.Usage: abrasive/blasting/polishing/refractory
9.Packages: 25kg PPbag, 1MT Jumbo bag, pallet, 25kg paper bag or as customer's requirement.
10.Certificate: ISO9001,
11.Sampla: free
12.MOQ: 25ton
13.Color: Brown
Supply Ability
3500 Ton/Tons per Month.
2044 Brown Fused Alumina Grit: F4 F220 For Abrasives Suppliers
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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.
From the day of our commencement, we are engaged in manufacturing and supplying of Brown Fused Alumina. Known for their features like optimum hardness, tough and sharp abrasives, these are suitable to grind high tensile metals. Our offered Brown Fused Alumina is tested on various quality parameters to ensure effectiveness. Moreover, these are used in manufacturing of grinding wheels, refractory products, micro blasting applications, surface hardening, general abrasives applications etc. Customers can avail these from us in desired quantity and at market competitive rates.
Remark: specification and size can be optimized by per customer' requirement
Packing: 1 MT big bag or 25kg paper bag *40 bags on one pallet ;
As per customers requirement
FAQ :
Q1. Will the FREE SAMPLES be provided for buyers?
- YES. We will provided FREE SAMPLE about 1kg
Q2. How about the express fee?
- Our companys policy is the buyer pay for express fee.
Q3. Is there QUALITY REPORT for the products?
- YES. We provide quality report of our company or CIQ,SGS according to clients requirements
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.
Brown fused alumina for abrasive
1. Description:
Brown Fused Alumina is made from high quality bauxite by fusing in an electric arc furnace at high temperature. It has good toughness and high hardness. It is suitable for manufacturing of vitrified and resin bonded tools, and for lapping polishing and sand blasting. It can be also used to make superior refractory products.
2. Compositions and physical properties:
Model: Brown fused alumina F24
Chemical compositions
Al2O3: 95.00%-97.50%
SiO2: 1.00%max
CaO: 0.42%max
Fe2O3: 0.30%max
Physical properties
Color: Brown
Grain density: 3.90g/cm3min
Melting point: 2250° C
Refractoriness: 1980° C.
3. Usage of Brown Fused Alumina for abrasive
Grains are especially designed to manufacture abrasives / grinding products.
4. About us
Henan Sicheng Co., Ltd, founded in 1999, is specialized in White Fused Alumina, Brown Fused Alumina, Mullite and other related products. Our production runs under the certifications of GB, ISO, FEPA, and JIS. We offer various items de pending on the demands of our customers.
Currently, we have exported our products all over the world, such as Europe, the USA, India, and Japan, enjoying good reputation in machinery, metallurgy, light industry and other fields.
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.
Copper slag is a low cost expendable abrasive suited for open blast cleaning and due to its low silica content it does not pose the health hazards created by silica sand. Its sharp, hard particles can provide a fast cleaning action and an excellent surface profile. It is available in various sizes
Copper slag is abrasive blasting grit made of granulated slag from metal smelting processes (also called iron silicate). Copper slag abrasive is suitable for blast cleaning of steel and stone/concrete surfaces, removal of mill scale, rust, old paint, dirt etc. Suitable for SA-3, SA-2 and SA-2. Copper slag blasting media/grit is manufactured of the granulated slag of copper refineries, and used for blast-cleaning of metal surface. In different industries it is called different names abrasive powder, grit, copper slag grit, mineral grit, grinding grains, etc.
Manganese Oxide Fertilizer Grade: Application: The product is generally used by the fertilizer industry. Fertilizer Grade: Appearance: Fine greenish-brown powder Total Manganese (Mn): 54% +/- 2% Manganese Oxide (MnO): 68% Iron as Fe: 12% max. Silica as SiO2: 12% max. Alumina as Al2O3: 5% max. Manganese Dioxide (MnO2): 2% max. Screen analysis 100 mesh (BSS): 95-100% Passing.
Brown fused alumina corundum is produced by a reduction fusion of high quality bauxites in electric arc furnaces. It is both a hard and tough material with high strength, making it an excellent abrasive grain for applications such as grinding wheels, sandpaper, blasting media, metal preparation, lapping, polishing, and grinding. Its thermal properties make it an excellent raw material for refractory applications.
Feldspar is the name given to a group of minerals distinguished by the presence of alumina and silica (SiO2) in their chemistry. This group includes aluminum silicates of soda, potassium, or lime. It is the single most abundant mineral group on Earth. They account for an estimated 60% of exposed rocks, as well as soils, clays, and other unconsolidated sediments, and are principal components in rock classification schemes. The minerals included in this group are the orthoclase, microcline and plagioclase feldspars.
APPLICATIONS
Glass making
Ceramics
Porcelain
Electrodes
Abrasion
We at CEMENTATION produce Feldspar of minerals containing Potassium and Sodium. Our supply is available in Lumps, Granules and Powder form.
brown fused alumina bfa is bauxite, coke, anthracite as main raw materials, made more than 2000 degrees high temperature melting, hitches in arc through the mill grinding, plastic, magnetic separation to iron, screen is divided into a variety of particle size, dense texture, high hardness, particle formed globular.High consolidation is suitable for making ceramic, resin abrasive and grinding, polishing, sandblasting, precision casting, etc.
Product Name Brown aluminum oxide grinding
Material AL2O3
Color brown
Standard JIS
Grade Top
Brade Rock
Al2O3 >95
Packaging & Shipping
Packaging Details 25kg PVC bags+1MT big bag.
Port Tianjin/Qingdao Port
2044 Brown Fused Alumina Grit: F4 F220 For Abrasives Suppliers
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