Wash oil (GB/T 24217-2009)
Introduction:
Wash oil is one of the important fractions in the process of coal tar rectification. The boiling range is 230-300 ° C, which accounts for 4.5-10% of coal tar. It is a complex mixture. Due to different cutting processes of various manufacturers, the content of each component is different. The range of fluctuations is large.
In general, the wash oil is a yellow-brown to brown oily liquid, rich in quinoline, isoquinoline, anthracene, α-methylnaphthalene, β-methylnaphthalene, biphenyl, dimethylnaphthalene, anthracene, oxonium Valuable organic chemical materials such as hydrazine have the highest content of naphthalene compounds.
Specification:
Item | Specification |
Density (20 ℃), g / ml | 1.03-1.06 |
Distillation range (atmospheric pressure 101.325kPA) | |
Initial boiling point | ≦230℃ |
The distillate (capacity),before 300 ℃ | ≦90% |
Phenol content | ≦0.5% |
Naphthalene content | ≦15% |
Moisture, | ≦1.0 |
Viscosity (E50) | ≦1.5 |
15℃ Crystals | None |
PH | 6-8 |
Standard | GB/T 24217-2009 |
Application:
Wash oil can be used as the raw material for extracting methylnaphthalene, quinoline, biphenyl, acenaphthene, fluorene, and dibenzofuran; also used as absorbent oil for crude benzene in coke oven gas.
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