- Category :
Organic chemicals and Derivatives
- CAS NO : 8052-42-4
- EC NO : 232-490-9
- Molecular Formula :
- Main Specifications :
- Synonyms : Asphalt cutback;asphalt fumes;
Package: In bulk when do domestic transportation for the purpose of saving costs, and packaged in polypropylene PP jumbo bags for exports.
Uses : It can be used as binder pitch for the production of high-power and ultra 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 ), high
Usage : It is obtained by distilling soft pitch in modifier under certain pressure and temperature after certain time of heating.
Product description:
Physical and chemical properties
The modified high temperature coal tar pitch is a black solid consist of fused ring aromatic hydrocarbons and macromolecular resins, which contains oxygen, nitrogen and sulfur heterocyclic compounds and a small amount of polymer carbon material.it can be solidified into a brittle solid in shell-like fracture at a certain temperature (1-5cm) without thermal effect. It is brittle black lumps under room-temperature and can be converted into liquid when heating, with characteristics of shiny, toxic and in a slight odor. Its flash point is 204.4°C and boiling point is no higher than 470°C . Melting point around 100-150°C and 1.25-1.35g/cm3 density.
Specifications of 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
Quinolone insoluble/% 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