WHA-410 is also a fine pore aluminum oxide,white powder.This product is used as gel of catalyst carrier coating film for the purification of auto-emission gas.Its performance is equivalent to the level of SB powder made in Germany and the gel used for catalyst carrier for the purification of auto-emission gas made in U.S.A.Some indexes are even superior than them.
Main technical indexes:
1.Chemical formula: Al2O3.nH2O(n=1.2-1.8)
2.Crystalline phase:Pseudo boehmite
3.Physicochemical indexes:
 |
| Al2O3 |
≥75% |
| Fe2O3 |
≤0.07% |
| Na2O |
≤0.07% |
| Pore volume 550°C,3h) cm3/g |
≥0.38 |
| Specific surface area (550°C,3h) m2/g |
≥300 |
| Pore distribution 30A-80A(550°C,3h) |
≥80% |
| Loss of ignition % |
≤23% |
| r-Al2O3 (900°C 2h) % |
≥98% |
| Pore volume (900°C,3h) cm3/g |
≥0.45 |
| Specific surface area (900°C,3h) m2/g |
≥200 |
| Pore distribution 30A-100A (900°C,3hr) |
≥80% |
| Particle size 325-1000(Mesh) |
350-1000 |
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