Graphitized Petroleum Coke GPC

Product Description

Graphitized Petroleum Coke (GPC) is a high quality carbon material produced by heating petroleum coke to high temperatures (2500 C) in the absence of oxygen. This process, called graphitization, results in the formation of graphite crystals within the coke structure, transforming it into a highly ordered carbon material with excellent properties. Here a detailed description of Graphitized Petroleum Coke:

Composition:

• Carbon Content: Graphitized Petroleum Coke typically contains over 98 carbon by weight, with low levels of impurities such as sulfur, nitrogen, and ash. The high carbon content makes GPC an excellent carbon additive for various industrial applications.
• Graphitic Structure: Through the graphitization process, the carbon atoms in petroleum coke rearrange into a highly ordered graphitic structure, characterized by hexagonal lattice arrangements of carbon atoms. This structure imparts unique properties to GPC, including high thermal conductivity, electrical conductivity, and mechanical strength.

Properties:

• High Thermal Conductivity: Graphitized Petroleum Coke exhibits high thermal conductivity due to its graphitic structure, making it an excellent heat transfer medium in applications such as steelmaking and aluminum smelting.
• Low Electrical Resistivity: GPC has low electrical resistivity, making it suitable for use as a carbon electrode in electric arc furnaces and other electrical applications requiring high conductivity.
• High Mechanical Strength: The graphitic structure of GPC provides excellent mechanical strength and stability, enabling it to withstand mechanical stresses and abrasion in harsh industrial environments.
• Chemical Stability: Graphitized Petroleum Coke is chemically stable and resistant to oxidation, corrosion, and chemical attack, even at high temperatures. This property ensures long term durability and performance in demanding applications.
• Low Volatile Content: GPC typically has low volatile content, reducing emissions and environmental impact during processing and use.
• Consistent Particle Size: GPC is available in various particle sizes, ranging from fine powder to granules, allowing for precise control over its application and performance characteristics.

Applications:

• Steelmaking: Graphitized Petroleum Coke is used as a carbon additive in the production of steel and iron alloys to improve carbon content, enhance melt fluidity, and reduce sulfur and nitrogen impurities. It is commonly added to the molten metal in electric arc furnaces and ladle furnaces.
• Aluminum Smelting: GPC serves as a carbon electrode material in the production of aluminum through the Hall Heroult process. It provides electrical conductivity and facilitates the reduction of alumina to aluminum metal in electrolytic cells.
• Foundry and Casting: GPC is used as a recarburizer in foundry and casting applications to adjust carbon content and improve the quality of castings by reducing defects such as porosity and shrinkage.
• Friction Materials: GPC is employed in the production of friction materials such as brake pads and clutch linings due to its high thermal conductivity, low coefficient of friction, and wear resistance.
• Graphite Products: GPC serves as a precursor material for the production of various graphite products, including graphite electrodes, graphite crucibles, and graphite lubricants.