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3-5mm Grain Size Chinese 85 Al2O3 Low Fe2o3 Refractory Round Kiln Bauxite Calcined Alumina Bauxite

3-5mm Grain Size Chinese 85 Al2O3 Low Fe2o3 Refractory Round Kiln Bauxite Calcined Alumina Bauxite, Find details about China Bauxite, Refractory from 3-5mm Grain Size Chinese 85 Al2O3 Low Fe2o3 Refractory Round Kiln Bauxite Calcined Alumina Bauxite

HS Code
2508300000
HS Code
2508300000
Product Description 

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. 

 We are a professional bauxite supplier in China and have been in this field for more than 17 years, our production capacity is 100000mts per year.



 Product specification: 
Chemical composition(%)RKB-75RKB-78RKB-80RKB-82RKB-84RKB-85RKB-86RKB-87RKB-88RKB-89
Al2O3 (min)75.00 78.00 80.00 82.00 84.00 85.00 86.00 87.00 88.00 89.00 
Fe2O3 (max)2.50 2.30 2.20 2.20 2.00 2.00 2.00 1.80 1.70 1.60 
SiO2 (max)19.00 16.00 14.00 12.00 10.00 9.00 8.00 7.00 6.00 5.00 
TiO2 (max)4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 
CaO+MgO (max)0.80 0.80 0.80 0.70 0.70 0.60 0.60 0.60 0.60 0.60 
K2O+Na2O (max)0.50 0.50 0.50 0.40 0.40 0.40 0.30 0.30 0.40 0.40 
B.D. ( g/ccm min)2.70 2.75 2.80 2.90 3.00 3.10 3.15 3.20 3.25 3.30 
H2O (max)0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 

Granular size: 0-25mm, 0-30mm, 0-1mm, 1-3mm, 3-6mm, -200mesh, -325mesh, or as customer's requirement.

Package
In 25kg/40kg small bags, 1MT, 1.25MT, 1.5MTJumbo bag, on pallet or as customer's requirement.
Standard exporting package for sea transportation or air delivery
Special packing requirement is acceptable

 

Application

1.Aluminium and metallurgical industry. Used for national defense, aviation, automobile, electrical appliances, chemical industry, daily necessities, etc.
2.Precision casting. Bauxite clinker processing into fine powder made of mold after casting.Used in military industry, aerospace, communications, instrumentation, machinery and medical equipment departments.
3.Refractory industry: refractoriness of high quality rotary kiln bauxite can reach 1780°C with strong chemical stability and good physical properties.
4.Silicic acid aluminium firefibre. It has the advantages of light weight, high temperature resistance, good thermal stability, low thermal conductivity, small heat capacity and mechanical vibration resistance.Used in iron and steel, non-ferrous metallurgy, electronics, petroleum, chemical industry, aerospace, atomic energy, national defense and other industries.It is the high aluminum clinker into the melting temperature of about 2000 ~ 2200ºC in the high temperature arc furnace, after high temperature melting, high pressure and high speed air or steam spray, cooling, became white "cotton" -- aluminum silicate refractory fiber.It can be pressed into fiber blanket, board or woven cloth instead of smelting, chemical, glass and other industrial high temperature furnace lining firebrick.Firemen can make clothes out of refractory fabric.
5.Mixed with magnesium oxide,it can be an nice bonding agent,especially for pouring entire steel teeming ladle lining.
6.Manufacture bauxite cement,grinding abrasives.ceramic industry,and chemical industry for making aluminium compounds.
7. The manufacture of fired and monolithic refractory products.
8. Chemistry industry for all kinds of aluminium compound.

3-5mm Grain Size Chinese 85 Al2O3 Low Fe2o3 Refractory Round Kiln Bauxite Calcined Alumina Bauxite3-5mm Grain Size Chinese 85 Al2O3 Low Fe2o3 Refractory Round Kiln Bauxite Calcined Alumina Bauxite3-5mm Grain Size Chinese 85 Al2O3 Low Fe2o3 Refractory Round Kiln Bauxite Calcined Alumina Bauxite3-5mm Grain Size Chinese 85 Al2O3 Low Fe2o3 Refractory Round Kiln Bauxite Calcined Alumina Bauxite

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