PRODUCTS

Coal Tar Pitch

This product is used in the production of coal tar pitch for the aluminum industry, as an additive for driveway sealers, and for wood treating with the extraction of creosote.


Specifications of Coal Tar

Property

Specification

Grade A

Grade B

Density ( 20°C ) g/ml

1.15 ~ 1.21

1.13 ~ 1.22

Toluene insoluble/% (Dry Basis)

3.5 ~ 7.0

≤ 10.0

Ash/%

≤0.13

≤0.13

Moisture/%

≤4.0

≤4.0

Viscosity (E80)

≤4.0

≤4.2

Naphthalene content/% (Dry Basis)

≥7.0

≥7.0


1-Soft Pitch

Property

Grade A

Grade B

Softening point /°C (R&B)

>80 ~ 90

>75 ~ 95

Toluene insoluble/%

15 ~ 25

<25

Quinoleneinsoluble/%

≤10

Ash/%

≤0.3

≤0.5

Moisture/%

≤5.0

≤5.0

Volatile Matter/%

58 ~ 68

55 ~ 75


2-Modified Pitch

Property

Grade A

Grade B

Softening point/°C (R&B)

100 ~ 115

100 ~120

Toluene insoluble/%

28 ~ 34

>26

Quinoleneinsoluble/%

8 ~ 14

8 ~ 15

β-resin/%

≥18

≥16

Coking Value/%

≥54

≥50

Ash/%

≤0.3

≤0.3

Moisture/%

≤5

≤5


3-High Temperature Modified Pitch

Property

Specification

Trace Elements

Typical

Softening point/°C (R&B)

120 ~ 150

S

0.47%

Toluene insoluble/%

26 ~ 30

Na

76ppm

Quinoleneinsoluble/%

6 ~ 10

Ca

32ppm

β-resin/%

≥18

Al

27ppm

Coking Value/%

≥55

Si

49ppm

Ash/%

≤0.3

Fe

161ppm

Moisture/%

≤3

Zn

116ppm

Distillation before 360 /%

1 ~ 3

Pb

220ppm