1. Product Description
Alumina Ball has 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 environment protection industries, Inert alumina ceramic ball can improve the distribution of gas and liquid, protect the catalyst from shocking by the rushing fluids. 2.Technical Specification Type Item Feldspar Feldspar-Mullite Mullite Mullite-Corundum Corundum Chemical composition % 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 Thermal resistance,℃ ≥1300 ≥1400 ≥1500 ≥1600 ≥1700 Crushing Strength（N/pc） Φ３ ≥120 ≥140 ≥150 ≥160 ≥200 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 ≥1900 Note: The data of bulk density is given for reference only, not as the acceptance criterion 3. Size Diameter, mm Φ3 Φ6 Φ8 Φ10 Φ13 Φ16 Φ20 Φ25 Φ30 Φ38 Φ50 Φ60 Φ75 Tolerance, mm ±1.0 ±1.5 ±2.0 ±3.0 4. Implementation of standard Chemical Industry Standard HG/T 3683.1- 2000 Industrial Ceramics Bal l- Inert Ceramic ball.
Type
Item
Feldspar
Feldspar-Mullite
Mullite
Mullite-Corundum
Corundum
Chemical composition
%
Al2O3
20-30
30-45
45-70
70-90
≥90
Al2O3+SiO2
Fe2O3
≤1
Water absorption %
≤5
Acid resistance, %
≥98
Alkali resistance,%
≥80
≥82
≥85
≥95
Thermal resistance,℃
≥1300
≥1400
≥1500
≥1600
≥1700
Crushing Strength（N/pc）
Φ３
≥120
≥140
≥150
≥160
≥200
Φ６
≥400
≥420
≥440
≥480
≥500
Φ８
≥520
≥600
≥620
≥650
Φ10
≥700
≥800
≥900
≥1000
Φ13
≥1100
≥1800
Φ16
≥2300
≥2600
Φ20
≥2000
≥2800
≥3200
Φ25
≥2500
≥3600
≥4000
Φ30
≥3000
≥3500
≥4500
Φ38
≥5000
≥5500
≥6000
Φ50
≥6500
≥7000
≥8500
≥10000
Φ75
≥11000
≥12000
≥14000
≥15000
Bulk density, kg/m3
1300-1400
1400-1500
1500-1600
1600-1800
≥1900
Note: The data of bulk density is given for reference only, not as the acceptance criterion
Diameter, mm
Φ3
Φ6
Φ8
Φ60
Tolerance, mm
±1.0
±1.5
±2.0
±3.0
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