Inert alumina ceramic balls

Inert alumina ceramic balls have high strength, the high chemical stability and the thermostable characteristic, Inert alumina ceramic balls may thermostable, high-pressured and the acid, the alkali, salty and each organic solvent corrosion, widely applies in professions and so on petroleum, chemical industry, chemical fertilizer, natural gas and environmental protection. In achievement reactor catalyst support and cladding material, but the cushion enters in the reactor the liquid and the gas to the catalyst the impact, protects the catalyst, and improves in the reactor the liquid and the gas distribution.

Type           item		Feldspar	Feldspar-Mullite	Mullite	Mullite-Corundum	Corundum
	AL2O3	20-30	30-45	45-70	70-90	≥90
Chemical Composition	SIO2+AL2O3	≥90
%	FE2O3	≤1
Water absorption　 %		≤5
Water absorption,　 %		≥98
Alkali resistance　 %		≥80	≥82	≥85	≥90	≥95
Thermal resistance　 ℃		≥1300	≥1400	≥1500	≥1600	≥1700
Crushing strength N/	φ6	≥120	≥140	≥150	≥160	≥200
	φ8	≥400	≥420	≥440	≥480	≥500
	φ10	≥480	≥520	≥600	≥620	≥6500
	φ13	≥600	≥700	≥800	≥900	≥1000
	φ16	≥1000	≥1100	≥1300	≥1500	≥1800
	φ20	≥1500	≥1600	≥1800	≥2300	≥2600
	φ25	≥1800	≥2000	≥2300	≥2800	≥3200
	φ30	≥2500	≥2800	≥3200	≥3600	≥4000
	φ38	≥3000	≥3200	≥3500	≥4000	≥4500
	φ50	≥4000	≥4500	≥5000	≥5500	≥6000
	φ60	≥6000	≥6500	≥7000	≥8500	≥10000
	φ75	≥10000	≥11000	≥12000	≥14000	≥15000
Bulk density,　kg/m3		1300-1400a	1400-1500	1500-1600	1600-1800	≥1800
Note: The data of bulk density is given for reference only, not as the acceptance criterion

Size:

Diameter, Φ	3	6	8	10	13	16	20	25	30	38	50	75
Tolerance, mm	±1.0				±1.5				±2.0			±3.0