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Hot Selling Bauxite Ore For Refractory By Chinese Conscince Supplier
Bauxite is a mixture of minerals that contain various concentrations of hydrated aluminum oxides
as well as impurities, which is also called calcined bauxite or sintered bauxite.
* Its main component is alumina, which is a hydrated alumina containing impurities
and is a kind of earthy mineral. White or off-white, brown or light red due to iron.
* Density 3.45g/cm3, hardness 1-3, opaque, crisp. Extremely hard to melt. Insoluble
in water, soluble in sulfuric acid, sodium hydroxide solution.
* It is mainly used for aluminum smelting and refractories.
Characteristics of Bauxite:
1. High refractoriness. 2. Physicochemical stability. 3. Volume density high .
4. Low porosity. 5. Low water absorption. 6. Fully calcined
7. Low impurity content.
Grain(mm): 8-5, 5-3, 3-1, 1-0 ;
Powder(mesh): 320, 280, 240, 200, 180, 150, 120, 100;
320F 200F 280F 240F 200F 80F 150F 100F
Item |
A12O3 min |
Fe2O3 max |
TiO2 max |
Sio2 max |
KO2+NaO2min |
CaO+MgOmin |
Bulk Density(g/cm3) |
75 |
75% |
3.0% |
4.0% |
8% |
0.3% |
0.6% |
>2.7 |
80 |
80% |
3.0% |
4.0% |
8% |
0.3% |
0.6% |
>2.8 |
85 |
85% |
2.0% |
4.0% |
8% |
0.3% |
0.6% |
>3.0 |
86 |
86% |
2.0% |
4.0% |
8% |
0.3% |
0.6% |
>3.2 |
88 |
88% |
1.8% |
4.0% |
7% |
0.25% |
0.6% |
>3.25 |
90 |
90% |
1.8% |
4.0% |
7% |
0.25% |
0.6% |
>3.25 |
1. Abrasives 2. Ceramics industry 3. Aluminium metallurgy 4. Precision / Investment casting:
5. Refractoriness can reach 1780°C. 6. Producing bauxite cement 7. Chemistry industry for all kinds of aluminium compound.
8. Mixing magnesia,bauxite grog with binders to pour the molten steel ladle for better overall lining performance.