Metallurgical Grade Bauxite / Calcined bauxite / bauxite ore for Cement Industry
Description :
Calcined bauxite is one of the principal ore of aluminum. Calcined bauxite contains hydrous aluminum oxides and aluminum hydroxides, formed through the laterization of aluminous rocks in tropical and subtropical areas .calcined bauxite is obtained by calcining (heating)superior grade bauxite at high temperature (from 85OC to 1600C) .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 84%to88%.the heating is carried out in rotary kilns.
Specifications of Calcined bauxite
| Grade |
AL2O3 |
SIO2 |
FE2O3 |
TIO2 |
K2O+Na2O |
CaO+MgO |
Bulk density |
| HX75 |
75min |
≤17 |
≤3.0 |
≤4.0 |
≤0.3 |
≤0.5 |
≥2.70 |
| HX80 |
80min |
≤12 |
≤3.0 |
≤4.0 |
≤0.3 |
≤0.5 |
≥2.80 |
| HX85 |
85min |
≤8 |
≤2 |
≤4.0 |
≤0.3 |
≤0.5 |
≥3.00 |
| HX86 |
86min |
≤7 |
≤2 |
≤4.0 |
≤0.3 |
≤0.5 |
≥3.10 |
| HX87 |
87min |
≤6 |
≤2 |
≤4.0 |
≤0.3 |
≤0.5 |
≥3.20 |
| HX88 |
88min |
≤5 |
≤1.8 |
≤4.0 |
≤0.25 |
≤0.5 |
≥3.25 |
| HX90 |
90min |
≤3 |
≤1.8 |
≤4.0 |
≤0.25 |
≤0.5 |
≥3.3 |
| Moisture(max) |
0.50% |
Application of calcined bauxite:
1. Aluminium metallurgy.
2. Precision casting / Investment casting: Bauxite grog fines can be made into mold for precision casting.
3. Refractory: refractoriness of high quality bauxite can reach 1780°C with good chemical stability and mechanical performance.
4. Aluminium silicate refractory fiber: high quality bauxite can melt in electric arc furnace, producing aluminium silicate refractory fiber, which can be made into ceramic fiber blanket, plate,cloth etc.
5. Mixing magnesia and bauxite grog with binders to pour the molten steel ladle for better overall lining.
6. Producing bauxite cement.
7. Abrasives grade bauxite.
8. Ceramics industry.
9. Chemistry industry for all kinds of aluminium compound.
Package:25kg / 50kg/500kg/1 jumbo bag (woven bag lined with polyethylene plastic film). Note that during storage, moisture, sun, water, try to avoid the packaging is damaged, so as not to affect the adsorption effect.
Delivery Detail: within 5-7 days after the confirmed order.
Factory Profile:
We is a professional large -scale manufacturer of all types of abrasive materials and integrating development and production together and we have more than 15years experience . We have many years of Refractorys , our mainly products : Calcined baxute , Brown Fused Alumina ,Garnet sand and so on. We have professional production and R&D departments, as well as dedicated marketers. We have more than 5 years of production and sales experience, And export our product to all over the world . We often export to South Korea, India, Singapore, Vietnam, Thailand, Malaysia . Our quality and service have received praise from many customers and established long-term cooperation.
FAQ:
Q: What's the MOQ?
A: Our MOQ is 1 metric ton. The price will be a lillte higher if the quantity is less than 1 metric ton.
Q: What's the delivery time?
A: It will takes about 7 days. But the exact time is according to actual situation.
Q: Can I get free samples?
A: Yes, we will mail samples you requested ASAP.
Q: Which products suit us?
A: We will recommend products to you based on your application or You can place a trial order upon satisfactory test of samples.
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