We are supplier and exporter of Calcined Alumina. Calcined alumina can be used in the polishing of different alumina products(mainly used in middle, fine polishing).It is also widely used in high-class aluminium refractory material, unshaped refractory materials, high aluminium ceramic product and advanced coating, etc, . Item Al2o3 % Na2o % Sio2 % Fe2o3 % D50 A4m 99.8 0.1 0.05 0.02 3.1 Alumina (Al2O3), the industrial Al2O3 is prepared from alumina (Al2O3, 3H2O) and hard alumina, and the Al2O3, which is high in purity, is usually prepared by chemical methods. Al2O3 has many isomorphic crystals, and there are currently more than 10 known types, mainly three types of crystal, namely gamma-al2o3, beta-al2o3, alpha-al2o3.Which structure is different, with different properties in high temperature above 1300 s almost entirely into alpha Al2O3.
Calcined Bauxite: 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. Minimum Order Quantity : 1 Containers
Fly Ash: Fly Ash is by product generated during combustion of coal, and comprises the fine particles that rise with the flue gases. Ash which is collected from the bottom is termed bottom ash. Fly ash is collected by electrostatic precipitators or other particle filtration equipment before the flue gases reach the chimneys of coal-fired power plants and together with bottom ash removed from the bottom of the furnace is in this case jointly known as coal ash. Depending upon the type of coal being used, the specification of Fly Ash varies considerably, but Fly Ash contains substantial amounts of silicon dioxide and calcium oxide (CaO), both being endemic ingredients in many coal-bearing rock strata. We are a reputed Fly Ash Exporter based in India and are supplying Fly Ash different cement, ready mix concrete, steel, refractories and construction industries. The Major Utilization Areas Of Fly Ash : - Manufacture of Portland Pozzolanic Cement & Performance improver in Ordinary Portland cement (OPC). - Part replacement of OPC in cement concrete. - High volume Fly Ash concrete. - Roller Compacted Concrete used for dam & pavement construction. - Manufacture of ash bricks and other building products. - Construction of road embankments, structural fills, low lying area development. - As a soil amender in agriculture and wasteland development. Types of Fly Ash: - According to the type of coal used fly is classified into two types. Anthracite and bituminous coal produces Fly Ash classified as class F. Class C Fly Ash is produced by burning lignite or sub-bituminous coal. Class C Fly Ash has self-cementing properties. - Class F and Class C Fly Ash are products of the combustion of coal in large power plants. Fly Ash is collected in electrostatic precipitators or baghouses, and then transferred to large silos for shipment. When needed, Fly Ash is classified by precise particle size requirements, thus assuring a uniform, quality product. - Class F Fly Ash is available in the largest quantities. Class F is generally low in lime, usually under 15 percent, and contains a greater combination of silica, alumina and iron (greater than 70 percent) than Class C Fly Ash. - Class C Fly Ash normally comes from coals which may produce an ash with higher lime content generally more than 15 percent often as high as 30 percent. Elevated CaO may give Class C unique self-hardening characteristics. Minimum Order Quantity : 1 container
Hello, We have a Seller who is offering Calcined Bauxite as follows. Calcined Bauxite is a value added product processed form of bauxite, calcined at high temperatures in a Rotary Kiln. It is Mainly used in Refractories in manufacturing of Refractory/Fire Bricks and Castables, In Abrasives industry for products like grinding wheels, sandpaper, and polishing compounds etc. to provide Hardness In Welding Electrodes as a coating material. Calcined Bauxite is made as per the product Ranging from Al2o3- 76% to 88% with price as per the different qualities at different rates. Our Rotary Kiln production capacity - 1500MT per month. Some companies require 76-80% material for High Alumina Cement. Some companies require 80-85-88% material for FireBricks. So we manufacture as pet demand. If any refractories require this product, the Seller can supply this Calcined Bauxite as per their specification. Please let us know the target price, specification, quantity per month required by the buyer to enable us to offer the same. We look forward to hearing from you.
We are supplier and exporter of Kaolin Ore. Features Of Meta Kaolin Metakaolin is form of calcined or dehydroxilated china clay. During calcination morphological, mineralogical and chemical changes occur which result in products with excellent optical properties. Applications Ceramics Glass Paper Cosmetics. Kaolin uses are multiple and diverse. Kaolin are used as functional filler, extender, ceramic raw material and pigment because of its whiteness and fine particle size. Kaolin also hold importance as raw material in refractory applications, concrete, rubber and fiber glass manufacturing.
Calcined bauxite is produced by sintering/calcining with natural bauxite ore of low iron, low alkali at temperatures of 1600 - 1800 degree Celsius in the rotary kiln or round kiln through pre-heationg, calcination, cooling and other processes. During Calcining, it can be removed impurities and improving the content of alumina. Refractory grade bauxite has high refractoriness, good mechanical strength and moderate slag resistance. Therefore calcined bauxite is one of the most important raw materials for the production of shaped and unshaped refractories for the steel industry, foundries, glass and cement plants.
Supplier: Refractory alumina products like bricks, castables and mortars from 30 up to 95% alumina, refractory magnesia products like ramming, gunning, spray mass, back filling and magnesia carbon bricks, silica ramming mass, mineral raw materials, including refractory calcined kaolin (37 41% alumina), sanitary ware chamotte (36 40% alumina), calcined dolomite (50 60% cao & 30 35% mgo), calcined lime (80 90% cao), ball clay (25 30 alumina), scrap crushed of alumina and magnesia spinel bricks, synthetic fluorspar (caf2), black carbon
Services: Installation services
Calcined Clay or Refractory clay is obtained by Calcining (heating) superior-grade Clay at high temperatures (from 850o C to 1600o C). This removes moisture and volatiles which thereby increases the Alumina content. Compared to an Alumina content of about 30% to 40% in raw Clay, Calcined Clay has an Alumina content of 40% to 60%. The Calcination is carried out in Rotary Kilns at different temperatures ranging from 850o C to 1600o C depending upon the customer's application. Product Specification Grade Name PI- 43 PI- 43(M) PI- 50 PI- 50(M) PI- 60 AL203 % 43±1 43±1 50±1 50±1 60±1 FE203 % 1.3±0.2 1.3±0.1 1.4±0.2 1.4±0.1 1.7±0.2 AP % MAX 10 6 10 6 10 BD GM/CC 2.4±0.05 2.42±0.05 2.5±0.05 2.52±0.05 2.6±0.05 PCE o/c 31-32 32-33 33-34 33-34 34-36
Dead burned magnesite 97% is a chemical substance, which means that when magnesite is calcined at 1800C, carbon dioxide completely escapes, and magnesium oxide forms a dense block of periclase. This dead burned magnesite has a high degree of fire resistance. Its main component is magnesia, which is made of natural special magnesite magnesia through flotation purification, light burning, fine grinding, high pressure ball pressing, and ultra high temperature oil shaft kiln calcination. Application: Dead burned magnesite 97% are made from sorted super grade natural magnesite through sections including float concentration, calcination, fine grinding, high pressure briquetting and ultra high temperature sintering in heavy oil shaft kilns. They are good quality materials for making magnesia bricks and monolithic refractories. Packing: Jumbo bag(or according to the customer requirement)
