1. Graphitization of petroleum coke is to put petroleum coke in a graphitization furnace, after about 3000 degrees of high temperature to make the amorphous chaotic structure of petroleum coke carbon crystals into hexagonal lamellar structure of crystalline carbon, that is, petroleum coke into graphite. This process is called graphitisation and the petroleum coke treated by the graphitisation process is called graphitised petroleum coke, commonly known as "graphitised coke".
2. Graphite petroleum coke is widely used as a carbon enhancer in the steel making and precision casting industries, as a breeder in the foundry industry, as a reducing agent in the metallurgical industry and as a refractory material. Graphite petroleum coke can promote the nucleation of graphite in the iron solution, increase the amount of ductile iron and improve the organisation and grade of grey cast iron. Through micro structure observation, graphite petroleum coke has the following characteristics: First, the ferrite content of ductile iron can be greatly increased without the use of pearlite stabilizers; Second, the proportion of V-shaped and VI-shaped graphite can be increased during use; Third, compared with improving the shape of the nodular ink, a substantial increase in the amount of nodular ink can reduce the use of expensive nucleating agents in later fine-tuning, resulting in significant cost savings.
| Item | Graphite petroleum coke |
| Fixed carbon(%) | ≥98.5 |
| Volatile matter(%) | ≤0.7 |
| Ash(%) | ≤0.8 |
| Ni(%) | ≤0.05 |
| Moisture(%) | ≤0.5 |
| Particle size | 0-1mm,1-5MM,1-3MM,1-4MM Or on client’s request |
| Packing | big bag,
10/20/25KG plastic woven bag
Kraft paper bag |
