metallic substance produced by melting and/or processing of metallic (scrap) and/or oxidic copper bearing materials (slag, oxides, ashes). Black copper is composed primarily of copper, contains other residual ferrous and non-ferrous metals and may contain metal oxides and metal sulfides.
synonyms: black copper, copper smelting;918-452-0;
note: Black copper will gradually be transformed into “blister copper” or “anode copper”, with copper content > 80%, during subsequent metallurgical processes.