Inert ceramic balls have the advantages of high strength, high stabilities to chemical and thermal circumstances. It can 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 environmental protection industries, it can improve the distribution of gas & liquid and protect the catalyst from shocking by the rushing fluids.
Size: Ø6- Ø75
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Chemical composition
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Content
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AL2O3
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(Normal Value + 4)%
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AL2O3+SiO2
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≥92%
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Fe2O3
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<1%
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&Chemical and Physical Property
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Main crystal phase
AL2O3
item
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Feldspar
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Feldspar-
mullite
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Mullite
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Mullite corundum
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Corundum
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20-25
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25-45
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45-70
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70-90
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>90
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Density (g/cm³)
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2.3-3.6
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Water absorption (%)
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<3
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<6
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Anti-acid(%)
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>98
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Anti-alkali(%)
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>80
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>82
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>85
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>90
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>95
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Spalling resistance(℃)
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>250
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>300
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>500
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>700
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>800
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Refractoriness (℃)
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>1300
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>1400
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>1500
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>1600
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>1700
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Crushing strength KN/pc
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Ø6
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>0.40
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>0.45
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>0.6
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>0.7
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>0.8
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Ø8
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>0.7
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>0.8
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>0.9
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>1.0
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>1.2
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Ø10
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>0.9
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>1.0
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>1.2
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>1.5
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>1.8
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Ø13
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>1.2
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>1.3
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>1.6
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>1.8
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>2.0
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Ø16
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>1.5
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>1.6
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>1.8
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>2.3
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>2.6
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Ø20
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>1.8
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>2.0
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>2.3
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>2.8
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>3.20
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Ø25
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>2.5
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>2.8
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>3.2
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>3.6
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>4.0
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Ø30
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>2.8
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>3.0
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>3.5
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>4.0
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>4.5
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Ø38
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>4.0
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>4.5
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>5.0
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>5.5
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>6.0
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Ø50
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>6.0
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>6.2
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>10.0
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>10.5
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>11.0
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Ø60
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>8.0
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>8.5
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>11.0
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>12.0
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>14.0
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Ø75
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>13.0
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>11.0
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>12.0
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>14.0
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>15.0
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& Size and tolerance
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DiameterØ mm
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3
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6
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8
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10
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13
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16
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20
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25
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30
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38
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50
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65
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75
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Tolerance
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±1.0
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±1.5
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±2.0
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±3.0
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