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Ceramic Ball Series

Inert Alumina Ball

Inert ceramic ball has the advantages of high mechanical strength, high thermal stability, and good chemical resistance in acid, alkali, salt and all organic environments. Main application is catalyst support and covering material in reactors in oil refinery, chemical, fertilizer, natural gas and environmental protection industries.

Main Crystal Phase

Feldspar

Feldspar-Mullite

Mullite

Mullite-Corundum

Corundum

Al2O3 content (%)

20-30

30-45

45-70

70-90

90

Water absorption (%)

Acid resistance (%)

Alkali resistance (%)

80

82

85

90

95

Thermal resistance()

1300

1400

1500

1600

1700

Compressive strength

(N/ pellet)

3

120

140

150

160

200

6

400

420

440

480

500

8

480

520

600

620

650

10

600

700

800

900

1000

13

1000

1100

1300

1500

1800

16

1500

1600

1800

2300

2600

20

1800

2000

2300

2800

3200

25

2500

2800

3200

3600

4000

30

3000

3200

3500

4000

4500

38

4000

4500

5000

5500

6000

50

6000

6500

7000

8500

10000

75

10000

11000

12000

14000

15000

Bulk density (kg/m3)

1300-1400

1400-1500

1500-1600

1600-1800

1800

Note: The data of bulk density is for reference only, not used as the acceptance criterion.

Size:

Diameter  mm 3 6 8 10 13 16 20 25 30 38 50 75
Tolerance  mm 1.0 1.5 2.0 3.0

Activated Alumina

The Activated Alumina has a large capacity of absorption, high surface area, high strength and thermal stability. It can be widely used as an absorbent, desiccant and catalyst carrier in chemical, petrochemical, fertilizer, oil and gas industries.

Model

KA401

KA402

KA403

KA404

KA405

KA406

Application

Absorbent

Defluorinate

Absorbent 

(H2O2)

Dechlorinate

Catalyst carrier

Absorbent in

air separation

Appearance

White ball

Main crystal phase

x-p

x-p

y

x-p

y

x-p

Chemical

composition

(%)

Al2O3

93

93

92

90

93

90

Na2O3

0.3

0.3

0.5

-

0.15-0.3

0.3

I.L

6-8

6-8<, /span>

8

8

5

6-8

Bulk Density (g/ml)

0.68-0.72

0.70-0.75

0.65-0.75

0.68-0.78

0.70-0.80

0.68-0.72

Surface Area (m2/g)

280

280

300

300

200

300

Pore Volume (ml/g)

0.3-0.45

0.3-0.42

0.4-0.46

0.3-0.5

0.4

0.3-0.5

Static Absorption

(%)

Water

15-17

Fluorine

0.12

Water

50

Chlorine

10-20

Water

50-70

Water

17-19

Activity (%)

-

-

56-62

-

-

-

Abrasion Loss (%)

1.0

1.0

1.0

0.7

0.4

0.8

Compressive

Strength

(N/pellet)

1-2

40

40

-

40

-

-

2-3

60

60

-

-

-

-

3-5

100

-

100

82

100

100

4-6

120

-

130

120

120

110

Perforated Ball

Perforated Ball is an improved variation of inert ball with the same chemical properties and similar physical properties 
  • Application: catalyst support and covering packing in oil refinery, chemical, and environment industries.

  • Feature: Better gas/liquid distribution and lower pressure drop over conventional inert ball, due to holes perforated in ball body.

Refractory Ball

Refractory Ball is widely used as catalyst support and covering in shift converter and reformer in ammonia plant.

Item

Unit

Data

Chemical

Composition

Al2O3

%

65

Fe2O3

%

1.6

Refractoriness

1,770

Loading Refractoriness

1,450

Compressive Strength

N/pellet

400-15,000

Porosity

%

21

Reburning Contraction

%

0.5

Thermal Storage Ball

Thermal Storage Ball has features of corrosion resistance, high mechanical strength, and good thermal capacity, hence is commonly used as thermal storage packing in air-separation and steel industries.

Item

Unit

Data

Chemical

Composition

Al2O3

%

20-25

Al2O3+SiO2

%

92

Fe2O3

%

1

Specific Heat

J/kg.k

836

Specific thermal conductivity

w/m.k

2.7-2.9

Hardness

Mohs

6.5

Abrasion Loss

%

0.05

Water absorption

%

<1

Bulk Density

kg/m3

2,400-2,600

Alumina Grinding Ball

The alumina grinding ball is widely used in ball mills as abrasive medium, due to its excellent mechanical properties, like high density, high hardness, and high abrasion resistance.

,

Item

High Alumina

Grinding Ball

Mid Alumina Grinding Ceramic Ball

Micro-crystal middle-alumina

Carborundum middle alumina

95%Al2O3

92%Al2O3

65%-75%Al2O3

60%-70%Al2O3

Al2O3 (%)

95

92

65-75

60-70

SiO2 (%)

3

3.81

30-15

20-15

Fe2O3 (%)

0.05

0.06

0.41

<0.5

TiO2 (%)

0.04

0.02

1.7

1.8

Other (%)

1.9

2.53

5

10

Bulk Density  (g/cm3)

3.68

3.65

2.93-3.0

2.80-2.90

Water Absorption (%)

<0.005

<0.01

<0.01

<0.05

Mohs Hardness

9

9

8

8

Compressive Strength

2100

>2000

>1000

>1000

Abrasion  (%)

0.0084

0.01

0.011

<0.08

Color

White

White

YellowWhite

Brown

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