I-Graphitized Petroleum Coke (GPC) iyimpahla eluhlaza ebalulekile embonini ye-metallurgical, esetshenziswa kabanzi njenge-carbon raiser (recarburizer) ekwenzeni insimbi nezinqubo zokuphonsa. Ikhiqizwa nge-graphitization yokushisa ephezulu ye-petroleum coke ku-2,500-3,500 ° C, ebonakala ngokuqukethwe kwayo okuphezulu kwekhabhoni engaguquki, isibabule esiphansi, namazinga aphansi okungcola. I-GPC yaziwa ngezinga layo eliphezulu lokumunca, ukusebenza okuzinzile, nokusebenza kahle ekwehliseni izinto eziyingozi njengesulfure ne-nitrogen ensimbi encibilikisiwe. Lokhu kuyenza ibe yimpahla efanelekile yokukhiqiza insimbi yekhwalithi ephezulu, insimbi ecijile, nama-alloys.
