Physical and chemical properties
Coal tar pitch is a black solid consist of fused ring aromatic hydrocarbons and macromolecular resin, at a certain temperature, it will be solidified into a brittle solid with shell-like fracture. It will melt in a certain range of melting points, but it has no definite melting point. Coal tar pitch has no thermal effect when solidified. Its flash point is 204.4°C , and its boiling point is no higher than 470°C . Melting point is between 100-200°C. Density is around 1.25-1.35g/cm3.
It is obtained by distilling soft pitch in modifier under certain pressure and temperature after certain time of heating.
It can be used as binder pitch for the production of high-power graphite electrodes( mainly used in steel mills and other metal smelting ), aluminum with anode paste and prebaked anode adhesives ( mainly for the aluminum plant ), carbon black and carbon black oil( mainly for rubber tire factory ).
In bulk when do domestic transportation for the purpose of saving costs, and packaged in polypropylene PP material bag( with sunscreen, 4.3kg/month gross weight ) when do exports.