Graphitized Petroleum Coke For Foundries

The production process of graphitized petroleum coke is comprised of three main stages: raw material preparation, high-temperature graphitization treatment, and subsequent processing.

The initial stage of the production process is the preparation of the raw material. The first step is to select a high-quality petroleum coke as the raw material. Petroleum coke is a byproduct of the petroleum refining process and contains a high concentration of carbon. The choice of raw materials is of the utmost importance with regard to the quality of the final product.

The high-temperature graphitization treatment is as follows: The petroleum coke should then be placed into the graphitization furnace and subjected to a long-term heat treatment at a high temperature (typically in excess of 2000°C) in the presence of an inert gas, such as nitrogen or argon. In this process, the carbon atoms in the petroleum coke are rearranged to form a layered structure similar to graphite, resulting in the production of graphitized petroleum coke.

The subsequent processing stage is as follows: The graphitized coke must then undergo further crushing and screening in order to obtain a particle size distribution that meets the specific requirements of the intended application. Additionally, washing, drying, and other treatments may be conducted to remove impurities and enhance the product's purity.

Product Advantages

GPC for foundries offers the following significant advantages:

The product boasts a high carbon content. GPC typically contains a carbon content of 98.5% or more, which can significantly enhance the carbon content in the casting process and improve the performance of castings.

Additionally, the product is low in sulfur and ash. Following rigorous graphitization, the sulfur and ash content in GPC is minimal, reducing impurities in castings and enhancing quality.

GPC has a high absorption rate, allowing it to quickly increase the carbon content in molten iron and improve production efficiency. Its layered structure also enables it to maintain structural stability at high temperatures, reducing defects such as pores and cracks in castings.

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