Ndị otu teknụzụ teknụzụ sitere na UrbanMines kwusiri ike na ọmụmụ nke mmịpụta ọla kọpa sitere na smelter slag, bụ nke a na-etinye na sulphating. Sulfating of slag mere site napyritetinye uche ma ọ bụ flotation ọdụ na okpomọkụ site na 500 ruo 650°C, ma jiri mmiri richaa calcine nke si na ya pụta.Nsonaazụ gosiri na a na-enweta oke ọla kọpa (70-73%) site na calcine, nwetara site na sulphating abụọ na atọ na 550 o C. Usoro a na-ahọrọ ebe ọ bụ na naanị 3-5% nke ígwè na-agbapụta.Na mgbakwunye na okpomọkụ sulphating, a chọpụtara na mmetụta dị ukwuu na leaching ọla kọpa nwere pyrite / flotation tailings: ratio.A rụpụtara nsonaazụ kacha mma site na sulphating nke 5.00 g slag na 2.00 g nke pyrite ma ọ bụ 3.00 g ọdụ ọdụ.
Ọla kọpa na-agbaze site na mgbakwunye
Fụọ ikuku ma kpoo ya ka ọ mee ígwè napyriteiru oxidation larịị
2CuFeS2 + 3O2→2Cus + 2FeO + 2SO2
↓
Kpoo calciate, quartz na pyrite ruo 1100℃
CuS + S(na pyrite)+ O2→Cu2S + SO2
Ka ọ dị ugbu a ka cupric sulfide na-asọpụta
CaCO3 + SiO2→CaSiO3 + CO2
CaSiO3 + FeO + SiO2→2 (Fe, Ca) SiO3
Ya mere, mepụta iron oxide gwakọtara na stovu dregs wee kewaa ha
↓
Wepụ iko sulfide na-asọpụta wee fesa ikuku
Cu2S + O2→2Cu + SO2↑
↓
Mgbe ọ dị mkpa, mekwuo electrolytA na-etinye sulfuric acid na cupric sulfide ngwọta
↓
Megharịa ọla edo, ọla ọcha na platinum site na ihe adịghị ọcha na-ebupụta
↓
Chekwaa ụzọ e si na ọla ahụ echekwa n'ebe dị n'elu ebe mgbaze
Ọla kọpa nwere ebe mgbaze dị elu ga-ekewa ma felie elu