refractory ceramic ball
Refractory ceramic ball as catalyst support and covering packings used in the shift converter and reformer in ammonia plant Refractory ball is also called inert ceramic ball, refractory ceramic ball, thermal-storage ball etc. which is widely used in the packed towers in the field of petrochemistry, fertilizer, fine chemistry and environment protection chemical composition:
typeproperties | Low aluminaball | Middle aluminaball | High aluminaball | CorundumAlumina ball | |
(%) | 20~25 | 47~56 | 90~92 | 98.5 | |
Al2O3+SiO2 (%)Min | 92 | 98.5 | |||
(%)Min | 1 | 0.2 | |||
CaO (%) Max | 1.5 | 2 | 3 | 0.2 | |
MgO (%) Max | 2.5 | 0.5 | 0.5 | 0.1 | |
K2 + Na2O | 4 | 3.5 | 4 | 0.5 | |
TiO2 (%)Max | 0.5 | 0.1 | 0.1 | 0.5 | |
Water absorption(%)Max | 3 | 01 | |||
Anti-acid (%)Min | 98 | ||||
Anti-alkali (%)Min | 80 | 85 | 90 | 95 | |
Density (g/cm3) | 2.3~2.4 | 2.6 | 3.5 | 3.0~3.6 | |
Spalling Resistance | 250 | 500 | 700 | 800 | |
Operation Temperature (oC) Max | 1100 | 1480 | 1760 | 1800 | |
Mohs Hardness Max | 6.5 | 7 | 7 | 7.5 | |
CrushingStrength(N/piece) | 6mm | 0.54 | 0.56 | 0.64 | 1 |
13mm | 1.56 | 1.67 | 1.99 | 3 | |
19mm | 2.89 | 4.21 | 3.21 | 5 | |
25mm | 4.89 | 6.22 | 5.28 | 8 | |
38mm | 5.33 | 8.92 | 5.33 | 8 | |
50mm | 6.22 | 9.8 | 8 | 15 |
refractory ceramic ball