Inert Alumina Ceramic Ball

Description:

Inert ceramic balls have the advantages of high strength, high stabilities to chemical and thermal circumstances. It can resist the corrosion to acid, alkali, salt, and all organic solvents. Being used as a supporting and covering material of catalyst in reactors, oil refinery, chemical, fertilizer production, natural gas, and environmental protection industries. The main role of these ceramic balls is to increase the distribution spots of gas or liquid and to support and protect the activating catalyst with low strength.

Technical Specification

Item	Feldspar	Feldspar-Mullite	Mullite	Mullite-Corundum	Corundum
Al2O3 %	17-30	30-45	45-70	70-90	≥90
Water absorption, %	≤3	≤3	≤3	≤3	≤3
Acid resistance , %	≥98	≥98	≥98	≥98	≥98
Alkali resistance,%	≥80	≥82	≥85	≥90	≥95
Thermal resistance,℃	≥1300	≥1400	≥1500	≥1600	≥1700
Crushing strength N/grain
Φ３	≥120	≥140	≥150	≥160	≥200
Φ６	≥400	≥420	≥440	≥480	≥500
Φ８	≥480	≥520	≥600	≥620	≥650
Φ10	≥600	≥700	≥800	≥900	≥1000
Φ13	≥1000	≥1100	≥1300	≥1500	≥1800
Φ16	≥1500	≥1600	≥1800	≥2300	≥2600
Φ20	≥1800	≥2000	≥2300	≥2800	≥3200
Φ25	≥2500	≥2800	≥3200	≥3600	≥4000
Φ30	≥3000	≥3200	≥3500	≥4000	≥4500
Φ38	≥4000	≥4500	≥5000	≥5500	≥6000
Φ50	≥6000	≥6500	≥7000	≥8500	≥10000
Φ75	≥10000	≥11000	≥12000	≥14000	≥15000
Bulk density, kg/m³	1300-1400	1400-1500	1500-1600	1600-1800	≥1800