Obere Sulfur dị ala Nitrogen Semi Graphitized Petroleum Coke dị ka ihe na-ebuli Carbon maka Metallurgy
Nkọwa Dị Mkpirikpi:
Semi GPC (SGPC) sitere na oyi akwa mkpuchi nke acheson furnace. Okpomọkụ eserese dị na oke. nke 1700-2500ºC. Ọ bụ ngwaahịa eserese okpomọkụ themedium. Ọ na-arụzi ihe na-echekwa ego na ya nnukwu carbon a kapịrị ọnụ, obere ọdịnaya sọlfọ, ọnụego mgbasa ngwa ngwa na oke nnabata.