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Alumina ceramic ball
Alumina ceramic ball

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Theceramic balls have a high hardness and abrasion and acid, alkali corrosion resistant.

Characteristic : High crushing strength, corrosion resistance, high temperature resistance, good thermal stability and thermal efficiency, large density and excellent thermal conductivity, cost-effective and long lifetime.

As the material to support and cover catalystin 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.


  Physical and chemical properties: 

Item TypeFeldstarFeldstar-mullitMulliteMullite-corundumCorundum
Chemical
composition %
Al2O320-3030-4545-7070-90≥90
Al2O3±SiO2≥90
Fe2O3≤1
Water absorption %≤5
Acid resistance %≥98
Alkali resistance %≥80≥82≥85≥90≥95
Thermal resistance≥1300≥1400≥1500≥1600≥1700

 

medium Alumina ball:
Alumina ball are the simplest, regularly shaped packing, Packed beds consisting of balls have a relatively small surface area per packed volume. Owing to the extremely small void fraction within the packed bed. The pressure drop is relatively high, Balls are frequently used as catalyst carriers and to smooth flows.

 

 

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