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Corundum Raschig Rings-99Al
High Pure Alumina Raschig Ring 85-99% utilized as the covering or supporting materials of the catalyst in the desiccant dryer/hydro cracker of petroleum process petrochemical reactors and the packing in the columns like petroleum, chemical industry, refinery, fertilizer, natural gas etc.

Corundum (Pure Alumina) Raschig Rings

We're a 30 years manufacturer and exporter of the catalyst and chemical packing. According to the market demand, we design and produce a series of new high-end catalyst support material. For example the Corundum (High Pure Alumina) Raschig Rings (Cylinders) Al2O3:85~99%, with excellent characteristic of high temperature resistance, high density, good pressure drop, excellent mechanical. Iutilized as the covering or supporting materials of the catalyst in the desiccant dryer/hydro cracker of petroleum process petrochemical reactors and the packing in the columns like petroleum, chemical industry, refinery, fertilizer, natural gas etc.

1. Application

Corundum (High Pure Alumina) Raschig Rings  widely used in many fields, such as petroleum, chemical engineering, fertilizer production, natural gas and environmental protection. They are used as covering and supporting materials of catalysts in reaction vessels and as packing in towers. 

 2. Characteristics
-- High purity , alpha alumina structure ,low silica.
-- Excellent thermal resistance.
-- Excellent chemical stability with strong resisting of acid , alkaline and organic impregnably.
-- Excellent inert character, excellent mechanical.
-- High density and Good hardness.
-- Low water absorption rate.
-- High Temperature and Pressure Resistance.

3. Technical Data 
1) Chemical Composition

Item

Al2O3

SiO2

TiO2

Fe2O3

CaO+MgO

Na2O+K2O

92H

92.00%

<7.00%

<0.50%

<0.50%

<1.00%

<0.50%

99P

99.00%

<0.25%

<0.45%

<0.15%

<0.20%

<0.40%

 2) Physical Properties -Average value

Item

Specific Gravity

Water Absorption

Hardness (Mohs)

Package Density

Operation Temperature

92H

3.10 g/cm3

<5 %

scale

1.6-1.8 g/cm3

 1500 ºC

99P

3.30 g/cm3

<5 %

scale

1.9-2.0 g/cm3

 1500 ºC


4. 
Standard Size

Size (D×H×T)
 (mm)

OD
 (mm)

ID
 (mm)

Wall Thickness

 (mm) 

Height

 (mm)

16×16×3

16

10

3

16

18×18×3

18

8

5

18

20×20×3

20

14

3

20

25.4×25.4×3

25.4

19

3

25.4

25.4×25.4×4

25.4

17

4

25.4

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