| Formula: | (Cexzryr1-X-Y)O2 |
|---|---|
| Classification: | Other Oxides |
| Grade Standard: | Industrial Grade |
|
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| Molecular formula: (CexZryR1-x-y)O2, R is one or more of La, Y, Pr, and Nd. |
| Properties: According to the different or amount of doped elements, the appearance is pale yellow to brown powder. |
| Application: Catalytic purification of automobile and motorcycle exhaust. |
| Use: Diesel engine SCR catalytic material; Boiler exhaust gas denitration; Organic exhaust gas catalytic combustion |
| Items | Specification | ||
| High Zirconium Series | High Cerium Series | ||
| Main Element% | CeO2 | 30-40 | 47-65 |
| Zr(Hf)O2 | 50-60 | 15-40 | |
| Doping Element% | Nd2O3 | 0-7 | 0-7 |
| Pr6O11 | 0-7 | 0-7 | |
| La2O3 | 0-5 | 0-5 | |
| Y2O3 | 0-6 | 0-6 | |
| Impurity Content% | Na2O | <0.03 | <0.03 |
| SiO2 | <0.05 | <0.05 | |
| Fe2O3 | <0.03 | <0.03 | |
| CaO | <0.03 | <0.03 | |
| Cl- | <0.01 | <0.01 | |
| SO42- | <0.03 | <0.03 | |
| Physical Index | SA(Fresh) m2/g | 70-100 | 70-100 |
| SA(aged,1000ºC/10hr)m2 /g | >40 | >40 | |
| SA(aged,1100ºC/10hr) m2/g | >20 | >20 | |
| SA(aged,1200ºC/10hr) m2/g | >5 | >5 | |
| L.O.I. % | <3 | <3 | |
| D50 um | Small particle size 2-5 | Small particle size 2-5 | |
| Routine 8-15 | Routine 8-15 | ||
| ITEM | SPECIFICATIONS | TEST RESULTS | ||||||
| La2O3 (%) | 4.5±0.5 | 4.41 | ||||||
| Al2O3 (%) | 95.5±0.5 | 95.59 | ||||||
| Impurities (%,Max) | ||||||||
| SiO2 | ≤0.1 | ≤0.1 | ||||||
| Fe2O3 | ≤0.01 | ≤0.01 | ||||||
| SO42- | ≤0.03 | ≤0.03 | ||||||
| Na2O | ≤0.1 | ≤0.1 | ||||||
| Other Indexes | ||||||||
| Fresh SSA (m2/g) | 180-220 | 203.87 | ||||||
| Aged SSA (1000ºC/4h, m2/g) | ≥120 | 146.01 | ||||||
| Aged SSA (1100ºC/4h, m2/g) | ≥60 | 68.93 | ||||||
| Ignition Loss (1000ºC/1h, %) | ≤3 | 2.45 | ||||||
| Particle size(D50,um ) | 4-6 | 5.88 | ||||||
| Packing: | 50KGs Iron Drum or 1000KGs Jumb Bag or packing as per request. |
| Storare: | Storing in sealed, dry and cool condition, not exposing to air for long time, avoiding moisture. |
| Characteristics: | Pink powder, slightly soluble in inorganic acid, insoluble in water. |
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