[ Products Description ]
Refractory ball produced by our company has good heat resistance, up to 1900癈, high mechanical strength, chemical stability, long life and other characteristics, mainly for methanol and fertilizer plants in high and low temperature changes in furnace, conversion furnace, hydrogenation converter, desulfurization tank and methanation furnace, gas-liquid dispersion effect, supporting coverage of boxes to protect a catalyst.
[ Technical Specification ]
| Item/Type |
Mullite |
Mullite-Corundum |
Corundum |
| Chemical Composition % |
Al2O3 |
30-90 |
90-98 |
≥99 |
| SiO2 |
10-70 |
0.5-5.0 |
≤0.3 |
| Fe2O3 |
≤3 |
≤0.5 |
≤0.1 |
| Refractoriness, °C |
≥1450 |
≥1750 |
≥1850 |
| Thermal Resistance, °C |
600 |
800 |
1000 |
| Crushing strength, N |
100-20000依品种和规格而异 Different upon types and sizes |
| Mohs' hardness, scal |
≥7 |
≥8 |
≥9 |
| Acid resistance, % |
≥95 |
≥98 |
≥98 |
| Alkali resistance, % |
≥85 |
≥95 |
≥98 |
| Bulk Density, kg/m3 |
1200-1600 |
1800-2000 |
2000-2200 |
|
