The carbon production process includes calcination, medium crushing, screening, kneading, molding, roasting, graphitization, machining, etc. Petroleum coke is usually used as raw material. Many industries, such as aerospace, medicine, chemical industry, negative electrode materials for environmentally friendly new energy batteries, and various special-purpose high-purity graphite, carbon fiber, graphene, etc., need to be manufactured with petroleum coke, and graphitization, impregnation and other processes are required to improve product quality. For example, the graphite crucible for smelting single crystal silicon needs high purity, which is inseparable from petroleum coke as raw material for processing and manufacturing.
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