Calcined bauxite aggregate is refractory material which is made of bauxite through a series of manufacturing process. It is usually applied to construction field, building material, refractory castable, fireproof field and so on in the manufacturer of Rongsheng refractory.
Calcined bauxite aggregate possesses a series of good performances. For instance, the amount of high alumina is high while the amount of iron is low. What’s more, its hardness and refractory temperature is high while the coefficient of thermal expansion is low. In addition, the thermal properties of calcined bauxite aggregate is pretty stable.
General Description of Calcined Bauxite
Bauxite is earthy mineral, which main composition is alumina, the hydrated alumina with little impurity. It usually takes the color of white and grayish white. Some bauxite takes the color of brown yellow and light red due to the composition of iron. It is extremely hard for bauxite to melt. What’s more, bauxite can not insoluble in water, but it can dissolved in sodium hydroxide solution. The definition of bauxite various from country to country, which is related to the different national resources amount and industrial demand. In China, bauxite refers to the mineral in which the amount of alumina is over 40% and A/S over 2.5.
China is rich in the resource of bauxite, which is on the top line with the amount of around 3.7 billion. As for the applications of bauxite, it can be applied to make aluminum and refractory material.
For instance, mixed with magnesia and binder, bauxite clinker can be made into refractory castable applied on the linings of ladle. In addition, it can be made into refractory concrete applied widely in many industries such as metallurgy industry, petroleum industry, power industry and so on.
Technical Parameters of Calcined Bauxite Aggregate
Item | GL-90 | GL-88A | GL-88B | GL-85A | GL-85B | GL-80 |
Al2O3≥ | 89.5 | 87.5 | 87.5 | 85 | 85 | 80 |
Fe2O3≤ | 1.5 | 1.6 | 2.0 | 1.8 | 2.0 | 2.0 |
TiO2≤ | 4.0 | 4.0 | 4.0 | 4.0 | 4.5 | 4.0 |
CaO+MgO≤ | 0.35 | 0.4 | 0.4 | 0.4 | 0.4 | 0.5 |
K2O+Na2O≤ | 0.35 | 0.4 | 0.4 | 0.4 | 0.4 | 0.5 |
Water-Absorption%≤ | 2.5 | 3.0 | 3.0 | 3.0 | 5.0 | 5.0 |
Bauxite Aggregate Suppliers
Bauxite aggregate is the raw material of refractory which is in great demand in various industries such as metallurgy industry, petroleum industry, chemical industry, construction industry, power industry and so on. There are many manufacturers and suppliers, in which Rongsheng Kiln Refractory Co, Ltd is the superior one, a comprehensive enterprise with professional personnel, complete producing line and advanced technology.
Rongsheng, with over two decades history, has developed to a professional refractory supplier. Adhering to the principle of honesty, it sells products and gains much public praise. It has exported its products to UK, Australia, South Africa and other countries.
If you want to buy bauxite aggregate, please contact us. We will reply you within 12 hours.