| Quantity: | |
|---|---|
0-1mm,1-3mm,3-5mm
SEPPE BAUXITE
25083000
High-density, thermally stable calcined bauxite for metallurgical processes including furnace linings, ladles, and slag conditioning.
▸ Rotary kiln bauxite is a high-alumina refractory raw material produced by calcining premium-grade bauxite in a rotary kiln at temperatures above 1600°C. In the metallurgical industry, it is widely utilized as a key component in steel ladle linings, blast furnace troughs, tundish boards, and other critical refractory applications. Its high density, low porosity, and excellent chemical stability provide long service life under severe thermal and mechanical conditions. Additionally, it can be used in slag conditioning and as a flux component in secondary metallurgy processes.
▸ From bauxite ore to finished sand, every stage is controlled to ensure consistent quality:
01 — Raw Material & Supply · Own mines, Al₂O₃ ≥ 65%
02 — Calcination Process · Rotary kiln at 1450–1550°C
03 — Processing & Grading · Crushing, screening & magnetic separation
04 — Testing & Delivery · Full lab testing & global packaging
▸ The rotary kiln calcination process imparts properties essential for the demanding metallurgical environment:
▸ High Thermal Shock Resistance — withstands rapid temperature fluctuations in batch and continuous casting operations.
▸ Low Porosity & High Density — minimizes slag penetration and metal infiltration in refractories, extending lining life.
▸ Chemical Inertness — resists basic and acidic slags, ensuring consistent performance in steelmaking and ironmaking.
▸ Stable Mineralogy — complete mullite and corundum formation provides mechanical strength at service temperatures up to 1770°C.
▸ XRF Chemical Analysis — every batch tested for Al₂O₃, Fe₂O₃, TiO₂, CaO, MgO, K₂O, Na₂O
▸ Bulk Density & Porosity Measurement — ensures consistent material performance in linings
▸ Particle Size Distribution — laser diffraction and sieve analysis for precise grading
▸ Magnetic Separation Inspection — removes iron contamination to maintain chemical purity
▸ Batch Traceability — full documentation from mine to shipment
▸ Extended Refractory Life — high density and low porosity reduce erosion and extend the interval between relining.
▸ Versatile Alumina Range — from 75% to 90% Al₂O₃ to match specific metallurgical requirements.
▸ Consistent Chemistry — uniform composition batch after batch, ensuring predictable in-service behavior.
▸ Good Slag Resistance — high alumina and low iron make it resistant to both acidic and basic slags.
▸ Customized Sizing — available in various fractions for monolithic and shaped refractories.
▸ Steel ladle linings (safety and working linings)
▸ Blast furnace trough and runner castables
▸ Tundish permanent linings and boards
▸ Electric arc furnace (EAF) deltas and spouts
▸ Secondary metallurgy and slag conditioning
| Chemical Composition | |
| Al₂O₃ | 75 - 90% |
| TiO₂ | 2 - 3% |
| SiO₂ | 6 - 18% |
| Fe₂O₃ | 0.5 - 2.5% |
| CaO | 0 - 0.4% |
| MgO | 0 - 0.2% |
| K₂O + Na₂O | 0 - 0.4% |
| Physical Properties | |
| Shape | Angular |
| Bulk Density | 2.90 - 3.25 g/cm³ |
| Apparent Porosity | ≤ 5% |
| Refractoriness | ≥ 1770℃ |
| Regular Sizes | 0-1mm, 1-3mm, 3-5mm, 5-8mm, … |
| Grade | Al₂O₃ Content | Metallurgical Application |
| Standard Refractory Grade | 75-80% | Blast furnace troughs, backup linings, general castables |
| High-Alumina Grade | 85% | Steel ladle linings, tundish boards, EAF spouts |
| Super Duty Grade | 87-90% | High-temperature zones, critical metallurgical vessels |
▸ SEPPE ensures a stable supply of high-grade rotary kiln bauxite with complete control from mining to final sizing. Our consistent quality and technical support help steelmakers and refractory producers reduce downtime and improve lining life. With logistics to over 40 countries, we provide reliable, on-time delivery for bulk and long-term contracts. Custom packaging and OEM services are available.
▸ 50 kg bags, 1 MT, 1.25 MT or 1.35 MT jumbo bags
▸ 20' FCL: approx 25-27 MT
▸ Private labeling and custom packaging available
▸ It is mainly used in refractory linings for steel ladles, blast furnaces, tundishes, and electric arc furnaces, as well as for slag conditioning.
▸ Typically 85% Al₂O₃ is used for ladle working linings, while 75-80% can be used for backup or safety linings. Higher grades (87%+) are used in high-wear areas.
▸ Yes, its high alumina content and low impurities provide excellent resistance to both acidic and basic slags encountered in steelmaking.
▸ Contact SEPPE for: • Free Samples • TDS / SDS Documents • OEM Packaging Options • Bulk Container Pricing
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