Perforated ceramic ball

The perforated ceramic ball is developed on the basis of inert ceramic ball. It has adequate mechanical strength, good chemical, and thermal stability as the normal inert ceramic ball. Furthermore, it has a larger surface area and void space which directly makes the dispersion and flux of the fluids increased, and brings down the resistance of the system resulting from the perforated holes on the ball. As new efficient catalyst support and covering material, it has been widely used in an oil refinery, chemical, fertilizer production, natural gas, and environmental protection.

Type	Feldspar	Feldspar-Mullite	Mullite	Mullite-Corundum	Corundum
Al2O3 %	20-30	31-45	46-70	71-90	≥90
Acid resistance, %	≥98	≥98	≥98	≥98	≥98
Alkali resistance,%	≥80	≥82	≥85	≥90	≥95
Thermal Shock resistance, ℃	≥300	≥400	≥500	≥600	≥700
Thermal Resistance, ℃	≥1000	≥1200	≥1300	≥1400	≥1500
Crushing strength KN/grain
Φ10	≥0.60	≥0.80	≥0.90	≥1.0	≥1.20
Φ13	≥1.00	≥1.20	≥1.40	≥1.60	≥1.80
Φ16	≥1.50	≥1.80	≥2.00	≥2.30	≥2.60
Φ20	≥1.80	≥2.20	≥2.50	≥2.80	≥3.20
Φ25	≥2.50	≥3.00	≥3.50	≥4.00	≥4.50
Φ30	≥3.0	≥3.50	≥4.00	≥4.50	≥5.00
Φ38	≥4.00	≥5.00	≥5.50	≥6.00	≥6.50
Φ50	≥6.00	≥7.00	≥8.00	≥9.00	≥10.00
Φ75	≥10.00	≥12.00	≥13.00	≥15.00	≥16.00
Bulk density, kg/m³	1100-1200	1200-1300	1300-1400	1400-1600	≥1600