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Calcined Petroleum Coke (CPC)
Calcined Petroleum Coke (CPC) is essential for producing graphite electrodes in electric arc furnaces, aluminum smelting anodes, recarburizers in iron casting, and as a reducing agent in TiO₂ chloride processes—making it a key raw material in high-temperature metallurgy and carbon-intensive applications.
Description
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Basic Description
High-Purity Carbon Material for Graphite Electrode and Metallurgical Applications
Calcined Petroleum Coke (CPC) is a high-carbon material produced by calcining green petroleum coke at temperatures between 1200°C and 1500°C. This thermal treatment removes moisture, volatile matter, and enhances the fixed carbon content and structural crystallinity. CPC plays a vital role in the graphite electrode industry—particularly in manufacturing RP (Regular Power), HP (High Power), and UHP (Ultra-High Power) electrodes used in Electric Arc Furnaces (EAF) and Ladle Furnaces (LF).
Technical Specifications (Typical Values)
| Property | Specification Range |
| Fixed Carbon (FC) | ≥ 98.5% – 99.5% |
| Sulfur (S) Content | ≤ 0.5% (can be customized to ≤ 0.3%) |
| Volatile Matter (VM) | ≤ 0.5% |
| Ash Content | ≤ 0.5% |
| Moisture | ≤ 0.3% |
| Real Density | 2.03 – 2.10 g/cm³ |
| Apparent Density | 0.96 – 1.10 g/cm³ |
| Particle Size Distribution | 0–1mm, 1–5mm, or tailor-made |
Low-sulfur, high-purity CPC is essential for UHP graphite electrode manufacturing, where strict impurity control is critical.
Key Advantages
● Ultra-High Carbon Purity:Supports low electrode consumption and stable arc performance.
● Excellent Electrical Conductivity:Ensures optimal current transmission during steel melting.
● Low Sulfur and Ash:Minimizes furnace contamination—ideal for high-grade steel production.
● Good Thermal Shock Resistance:Maintains structural integrity under rapid heating and cooling cycles.
● Customizable Particle Sizes:Suitable for baking, pressing, and vibrational molding in electrode production.
Core Applications
● Graphite Electrode Raw Material
CPC is a fundamental component in producing RP/HP/UHP graphite electrodes for steelmaking in EAFs and refining in LFs. For UHP electrodes, low-sulfur, easily graphitizable CPC grades are preferred.
● Recarburizer / Carbon Raiser
CPC is widely used in foundries as a recarburizer to increase carbon content in molten steel and ductile iron. High fixed carbon and low sulfur ensure clean additions.
● Aluminum Smelting Anodes
Low-sulfur CPC is used in anode blocks for aluminum electrolysis via the Hall–Héroult process due to its good thermal conductivity and oxidation resistance.
● Titanium Dioxide & Chemical Industry
As a carbon reductant, CPC is applied in TiO₂ production (chloride process) and other chemical syntheses requiring high-temperature carbon materials.
Why Choose Us?
We specialize in producing high-quality CPC from low-sulfur green petroleum coke, tailored for graphite electrode applications. Our production line supports full-range particle sizing, sulfur customization, and SGS-inspected quality control. With high fixed carbon, excellent conductivity, and global shipping capability, we are a preferred CPC supplier for electrode producers, foundries, and aluminum plants worldwide.
Contact us today for technical data sheets, COA, and free samples.
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