Inert ceramic balls have the advantage of high strength, high stabilities to chemical and thermal circumstances. It can be resistant to acid, alkali, salt and all organic solvents. Being used as a support and a covering material in reactors in oil refinery, chemical fertilizer, natural gas and evironmental protection industries, it can improve the distribution of gas & liquid and protect the catalyst from shocking by the rushing fluids.

 

 

Features		Feldstar	feldstar-mulite	mulite	mullite-corundum	corundum
Chemical compositon	Al2O3	20-30	30-45	45-70	70-90	≥90
	Al2O3+SiO2	≥90
	Fe2O3	≤1
Water absorption %		≤5
Acid resistance %		≥98
Alkali resistance %		≥80	≥82	≥85	≥90	≥95
Refractory temperature ℃		≥1300	≥1400	≥1500	≥1600	≥1700
	φ3	≥80	≥82	≥85	≥90	≥95
Crushing Strength N/Particle	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
Remark: The data of bulk density is only as referecne, not as inspection basis.