Calcined Bauxite is produced by sintering high-alumina bauxite in rotary, round or shaft kilns at high temperatures of 1600℃-1800℃. This process of calcining (heating) bauxite in kilns removes moisture and gives Calcined Bauxite its high alumina content and refractoriness, low iron, and grain hardness and toughness. Its thermal stability, high mechanical strength and resistance to molten slags make Calcined Bauxite an ideal raw material in the production of shaped and unshaped refractories for the steel industry, foundries, glass and cement plants.
Item | RKB90 | RKB88 | RKB87 | RKB85 | RKB80 | RKB75 |
Al2O3(%) | 90.0min | 88.0min | 87.0min | 85.0min | 80.0min | 75min |
SiO2(%) | 3.5max | 5.5max | 7.0max | 8.0max | 10.0max | 16max |
Fe2O3(%) | 1.5max | 1.6max | 1.8max | 2.0max | 2.0max | 2.0max |
TiO2(%) | 3.8max | 4.0max | 4.0max | 4.0max | 4.0max | 4.0max |
CaO+MgO | 0.35max | 0.40max | 0.40max | 0.40max | 0.50max | 0.50max |
0.35max | 0.40max | 0.40max | 0.40max | 0.50max | 0.50 max | |
B.D(gm/cc) | 3.35min | 3.25min | 3.20min | 3.10min | 2.90min | 2.80 min |
Moisture | 0.3max | 0.3max | 0.3max | 0.3max | 0.5max | 0.5max |
Bauxite aggregate:(0-0.3mm,0-0.5mm,0-1mm,1-3mm,3-5mm,5-8mm.)
Bauxite powder:(100#-0,200#-0,325#-0)
Bauxite 0-1mm Bauxite 1-3mm Bauixte 3-5mm
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1. Producing bauxite cement.
2. Abrasives.
3. Ceramics industry.
4. Chemistry industry for all kinds of aluminium compound.
5. Aluminium metallurgy.
6. Precision casting / Investment casting: bauxite grog fines can be made into mold for precision casting.
7.Refractory:Aluminium silicate refractory fiber, mixing magnesia and abuxite grog with binders to pour the molten steel ladle.
Henan sicheng Abrasives Tech Co.,ltd. was established in 2010. It covers the area of 10 years. With updated new equipments, our factory can produce calcined bauxite 150,000 tons per year. It is one of the high grade Refractory production base in China.
We have our own individual laboratory, the testing method for particle size is laser measuring method. From raw material choosing and purchasing, production processes, to market & sales, we all have very high standards. which makes our products very popular among Japan, Korea, Southeast Asia, Middle east and European countries.
