ZE XI MINERAL CO., LTD
Calcined Alumina Manufacturer & Supplier
ZE XI MINERAL CO., LTD is a professional manufacturer and supplier of Calcined Alumina. Our calcined alumina is characterized by high chemical inertness, high melting point and excellent thermal stability. It is widely used in refractory, steel, ceramics and non-ferrous metallurgy industries.
Product Description
Calcined Alumina is produced by high-temperature calcination of aluminum hydroxide. It features stable crystal structure, low impurity content and high alpha-phase conversion. Our calcined alumina is suitable for demanding refractory and industrial applications.
Main Applications
- Electro-fused zirconia corundum
- Alumina bricks and monolithic refractories
- Alumina hollow sphere products
- Castables, ramming mixes and gunning materials for steel industry
- Alumina refractory fibers
- High alumina cement
- Non-ferrous metallurgy
Technical Parameters
| Item | ZX1A | ZX2 | ZX3 | ZX4 | ZX5 | ZX6 |
|---|---|---|---|---|---|---|
| Al₂O₃ (%) | ≥99.7 | ≥99.7 | ≥99.7 | ≥99.7 | ≥99.8 | ≥99.8 |
| SiO₂ (%) | ≤0.03 | ≤0.03 | ≤0.05 | ≤0.03 | ≤0.03 | ≤0.03 |
| Fe₂O₃ (%) | ≤0.02 | ≤0.02 | ≤0.02 | ≤0.01 | ≤0.01 | ≤0.01 |
| Na₂O (%) | ≤0.06 | ≤0.04 | ≤0.04 | ≤0.03 | ≤0.03 | ≤0.03 |
| Alpha-phase Conversion (%) | ≥95 | ≥95 | ≥95 | ≥95 | ≥96 | ≥96 |
Packaging & Storage
Packaging: 25 kg woven bag, 1.25 MT jumbo bag,
or 25 kg bag × 40 bags per pallet.
Storage: Store in a dry and ventilated area,
away from moisture and contamination.