技术文章

Ceramic Raschig ring

Ceramic Raschig ring
Pingxiang Naike Chemcial Industry Equipment Packing Co.Ltd--Over 35 years manufacture experience

 

 

Ceramic Raschig Ring can resist high temperature, acid (except HF), alkali, salt and various organic solvents. It's widely applied in various packing towers of desiccation, absorption, cooling, washing, and regeneration in industries of petrochemical, chemical, metallurgy, gas and oxygen generation.
Ceramic raschig ring are used in commercial fractional distillation towers to reduce pressure loss (versus using trays), while maintaining good efficiency and economy.Typically the change in pressure (also called "delta p") is lower than in the case of trays but slightly higher than for structured packing. 
For ceramic raschig ring with big size over 100mm, it's usually filled in the column orderly. If its size is less than 90mm, raschig ring is stacked in the column randomly.

 

Technical date:

Name

Normal
mm

Diameter*Height*
Thickness mm

Surface area
m2/m3

Void space
%

Bulk density
kg/m3

No.elements
per/m3

Packing factor
m-1

Rasching ring

ø16

16*16*3

250

66

820

178000

870

ø25

25*25*3

147

78

510

42000

310

ø38

38*38*4

100

80

458

12000

195

ø50

50*50*5

80

81

465

5600

156

ø76

76*76*9

62

75

575

1700

147

 Chemical composition

SiO2

Al2O3

Fe2O3

CaO

K2O+Na2O

>70%

23-30%

<1%

<1-2%

<2-4%

 

 Physical properties

 

Index

Value

Specific gravity(g/cm3)

2.25-2.35

Water absorption(%)

<0.5

Acid-resisting strength, %Wt. Loss (ASTMc279)

<4

Firing temperature(Degree C)

1280-1320

Softening point( Degree C)

>1400

Density(kg/m3)

2350

 

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