Complaint
Metallurgical/Industrial Grade Calcined Alumina
Industrial grade alumina with little dust floated, good solubility, strong adsorptivity.
Physical Property: white powder, no block.
Usage: Industrial grade alumina with little dust floated, good solubility, strong adsorptivity. Mainly used in the production of fused salt electrorefining aluminium, corundum, enamel, refractories and other alumina chemical products.
Calcined Alumina Metallurgical Grade Performance
| Chemical Composition | Calculated Al2O3 -Dried (wt%) | 98.7 | |
| Calculated Al2O3 -Fired (wt%) | 99.5 | ||
| SiO2 (wt%) | 0.009 | ||
| Fe2O3 (wt%) | 0.006 | ||
| TiO2 | 0.003 | ||
| Na2O | 0.4 | ||
| CaO | 0.041 | ||
| Ga2O3 | 0.0086 | ||
| P2O5 | 0.0003 | ||
| LO I*1 (wt%) | 0.76 | ||
| Screen Analysis | +150μm(100mesh) | 4.30% | |
| +106μm(150mesh) | 28.10% | ||
| +75μm(200mesh) | 66.30% | ||
| +53μm(270mesh) | 88.10% | ||
| +45μm(325mesh) | 93% | ||
| Superfines -20μm | 1.90% | ||
| Flowabllity -4.0mm funnel (sec) | 81 | ||
| BET (m2/g) | 72 | ||
| Attrition index | 6% | ||
| Alpha Phase | 2% | ||
| Angle of Repose (º) | 32 | ||
| Loose Bulk Density (kg/m3) | 961 | ||
| Packed Bulk Density (kg/m3) | 1177 | ||
| Trace Elements(Typical Upper Limits) | |||
| % | % | ||
| V2O5 | <0.0006 | ZnO | 0.0004 |
| Gr2O3 | <0.0005 | K2O | 0.0003 |
| CuO | <0.0004 | B2O3 | 0.0064 |
| MnO | <0.0006 | Li2O | 0.0005 |
| NiO | <0.0004 | MgO | 0.0033 |
ZALY Alumina Powder
Industrial alumina powder---Metallurgical grade alumina powder
Calcined alumina--- mainly used in ceramics, refractories, glazing etc
White fused alumina--- used in refractory,grinding&polishing,abrasives
Tabular alumina--- used in refractory
Fetures
1) 99.6% min high purity, raw material origin is Australia
2) SGS, ISO audited manufacturer
3) mass production ability
4) stable chemical features with fine particle size
5) hot-selling in Asia market with favorable price
Process
Dry pressing, CIP, injection moulding,etc.
Technical features
1) excellent chemical activity, see below table
2) resonable particle size (D50=1-75 um)
3) low water absorption rate, big true density, extremly low impurity content
4) wear resistant, heat resistant, corrosion resistant
5) excellent refractory proper
