Nkọwa Dị Mkpirikpi:

Ihe mkpuchi carbon anode na-ezo aka na ihe mkpuchi carbon, nke e ji petroleum coke na pitch coke mepụta dị ka ihe aggregate na ihe mkpuchi coal tar dị ka ihe njikọ, nke a na-eji dị ka ihe anode maka sel electrolytic aluminum a kpụchara akpụcha. A kpụchaala ụdị ihe mkpuchi carbon a ma nwee ọdịdị ya kwụsiri ike. Ya mere, a na-akpọkwa ya ihe mkpuchi carbon anode a kpụchara akpụcha, a na-akpọkwa ya ihe mkpuchi carbon maka electrolysis aluminum.