How synthetic graphite is created

The production of synthetic graphite involves several complex steps that require precise control of temperature, pressure, and starting materials. The process begins with carbon-containing raw materials such as petroleum coke or anthracite, which undergo a thermal and chemical transformation process.

1. Preparing starting materials: Petroleum coke, a byproduct of oil refining, is purified, ground, and mixed with a binder such as tar or pitch. This mixture is then pressed into the desired shape.
2. Carbonization: In this step, the material is heated to temperatures between 800 and 1,200 °C. During this process, volatile components escape, resulting in a carbon-rich but still amorphous material.
3. Graphitization: The crucial step in converting to graphite occurs by heating to extreme temperatures of up to 3,000 °C in special graphitization furnaces. Under these conditions, the carbon atoms rearrange into a regular, graphitic structure, which gives the material its unique properties.
4. Post-processing and refinement: Depending on the desired application, the synthetic graphite can be further refined, for example through additional purification processes, coatings, or particle size adjustment.

Why synthetic graphite?

Synthetic graphite has several decisive advantages over natural graphite:

• High purity: The controlled manufacturing process eliminates impurities, making it ideal for applications in electronics and aerospace.
• Uniform structure: Unlike natural graphite, synthetic graphite has a homogeneous structure that improves its mechanical and electrical properties.
• Tailored properties: Through targeted process control, specific properties such as electrical conductivity, thermal conductivity, or mechanical stability can be optimized.

Applications for synthetic graphite

Thanks to its outstanding properties, synthetic graphite is a key material for many modern technologies:

• Lithium-ion batteries: As an anode material, synthetic graphite contributes to the high performance and durability of modern energy storage devices
• Semiconductor and electronics industry: High-purity graphite is used for the production of silicon wafers and as a component in high-performance processors.
• High-temperature furnaces: Synthetic graphite is used for heating elements and insulation materials that must withstand extreme temperatures.
• Metallurgy: It is used in the form of electrodes in electric arc furnaces for steel production.