Inert Alumina Ball

Inert Alumina Ceramic Ball
With the characters of high mechanical strength, high chemical stability, and excellent heat endurance, inert alumina ball can resist high temperature, high pressure, acid, alkali, salt and various organic solvents.

As the material to support and cover catalyst in the reactor, inert alumina ball can buffer gas or liquid's flush on catalyst so as to protect catalyst. It also can improve distribution of gas or liquid in the reactor.

Therefore, it's widely applied in petrochemical, chemical, fertilizer, gas and environmental protection industries.

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Chemical Composition
Item Index
Al2O3 (Normal Value +4¡¨%
Al2O3+SiO2 90% Min.
Fe2O3 1% Max.

Technical SpecificationItem Main Crystal Phase Feldspar Feldspar Mullite Mullite Mullite Corundum Corundum
Al2O3 Content 20-30 30-45 45-70 70-90 ÿ?0
Water absorption, % ÿ?
Acid resistance, % ÿ?8
Alkali resistance, % ÿ?0 ÿ?2 ÿ?5 ÿ?0 ÿ?5
Thermal resistance, ÿãC ÿ?30 ÿ?00 ÿ?00 ÿ?00 ÿ?00
Compressive strength, ¥Õ3 ÿ?.12 ÿ?.14 ÿ?.15 ÿ?.16 ÿ?.20
¥Õ6 ÿ?.40 ÿ?.42 ÿ?.44 ÿ?.48 ÿ?.50
¥Õ8 ÿ?.48 ÿ?.52 ÿ?.60 ÿ?.62 ÿ?.65
¥Õ10 ÿ?.60 ÿ?.70 ÿ?.80 ÿ?.90 ÿ?.00
¥Õ13 ÿ?.00 ÿ?.10 ÿ?.30 ÿ?.50 ÿ?.80
¥Õ16 ÿ?.50 ÿ?.60 ÿ?.80 ÿ?.30 ÿ?.60
¥Õ20 ÿ?.80 ÿ?.00 ÿ?.23 ÿ?.80 ÿ?.20
¥Õ25 ÿ?.25 ÿ?.80 ÿ?.20 ÿ?.60 ÿ?.02
¥Õ30 ÿ?.00 ÿ?.20 ÿ?.50 ÿ?.00 ÿ?.50
¥Õ38 ÿ?.00 ÿ?.50 ÿ?.00 ÿ?.50 ÿ?.00
¥Õ50 ÿ?.00 ÿ?.50 ÿ?.00 ÿ?.50 ÿ?0.0
¥Õ75 ÿ?0.0 ÿ?1.0 ÿ?2.0 ÿ?4.0 ÿ?5.0
Bulk density* Kg/m3
1300-1400 1400-1500 1500-1600 1600-1800 >1800
* Note: The data of bulk density is only given for reference, not as the acceptance criteria.

Product Size
Diameter, ¥Õ 3 6 8 10 13 16 20 25 30 38 50 75
Tolerance, mm ÿ?.0 ÿ?.5 ÿ?.0 ÿ?.0