90 High Alumina Ball

Specific Application:


Summary:

The Xintao 90 High Alumina Support Media is in chemical composition90+% alpha alumina and a maximum 0.2wt% SiO2 .

Introduction: 

The Xintao 90 High Alumina Support Media is in chemical composition90+% alpha alumina and a maximum 0.2wt% SiO2 . Because of its high alumina content and low silica (SiO2 ), it's a very excellent and ideal product for high temperature and steam applications, such as secondary reformers in ammonia processing, where leached silica will coat downstream equipment or foul the catalyst bed.

The Chemxin 90 High Alumina Support Media has very excellent thermal properties, with its high density high-temperature resistance 1550℃, also it's a good choice for heat retention or equilibration media.

For its superior chemical resistance, it's suitable for applications in olefin processes, such as ethylene dryers, where there's the polymerization problem.

Technical data:

Model:

Xintao 90

Color:

White

Shape:

Ball

Typical Technical Composition

Min. %

Min. %

Max. %

Usual %

SiO2

******

******

4

2

Al2O3

90

90

92

90.8

Fe2O3

******

******

0.3

0.02

TiO2

******

******

0.1

0.02

CaO

******

******

4

1.50

MgO

******

******

0.1

0.05

Na2O

******

******

0.25

0.1

K2O

******

******

0.2

0.13

Physical properties

Index

Value

Value

Leachable Iron

≤ 0.01%


Apparent Porosity by Weight

≤ 7.0%


Moh's Hardness Scale

>8.0


Water Absorption

<4.0wt.%


Acid Resistance

>99.8%


Thermal Conductivity

0.7-0.8 w/m2 .k


Thermal Expansion @ 500

0.10%


Thermal Shock Stability, 1000 then water cooling

10 times


Max. Operating Temperature

1550°C

2822

Specific Density

3.2g /cm3

212 lb /ft3

Bulk Density (Packing Density)

1.9 g /cm3

125 lb /ft3

Crush Strength

Size /

Crush Strength

Nominal Size

(lbs)

(kg)

(N/pc)

mm

inch

min.

min.

min.

3

1/8"

115

52

510

6

1/4"

230

105

1030

10

3/8"

440

200

1961

13

1/2"

1355

615

6031

16

5/8"

1720

780

7650

19

3/4"

3344

1520

14896

25

1"

3432

1560

15288

38

1-1/2"

4034

1830

17946

50

2"

4960

2250

22065

Typical Application:

a) high temperature and steam                                                                              

b) has very excellent thermal properties, with its high density high-temperature resistance 1550,      

c) it's suitable for applications in olefin processes, such as ethylene dryers

Size tolerance:

Diameter Ф

3

6

8

10

13

16

20

25

30

38

50

75

Size tolerance

±1.0

±1.5

±2.0

±3.0