IQela leTekhnoloji elivela kwi-UrbanMines ligxininise isifundo sokutsalwa kobhedu kwi-smelter slag, ephantsi kwe-sulphating. I-sulphating ye-slag yenziwa nguipyritei-concentrate okanye i-flotation tailings kumaqondo obushushu ukusuka kuma-500 ukuya kuma-650°C, kwaye i-calcine efunyenweyo yatsalwa ngamanzi.Iziphumo zibonise ukuba ubuninzi be-copper leaching (70-73%) bufunyenwe kwi-calcine, efunyenwe ngeeyure ezimbini kunye neeyure ezintathu ze-sulphating kwi-550 o C. Inkqubo ikhetha kuba kuphela i-3-5% ye-iron ichithwa.Ukongeza kwiqondo lokushisa le-sulphating, kwafunyaniswa ukuba impembelelo enkulu kwi-copper leaching ine-pyrite / flotation tailings: ratio.Iziphumo ezilungileyo zifunyenwe nge-sulphating ye-5.00 g slag kunye ne-2.00 g ye-pyrite okanye i-3.00 g ye-tailings.
Ukunyibilikisa iCopper ngokudibanisa
Vuthela umoya kwaye uwufudumeze ukwenza intsimbi kunyeipyriteukufikelela kwinqanaba le-oxidation
2CuFeS2 + 3O2→2CuS + 2FeO + 2SO2
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Fudumeza icalciate, iquartz kunye nepyrite ukuya kwi1100℃
CuS + S(kwipyrite）+ O2→Cu2S + SO2
Ngeli xesha njengoko i-cupric sulfide idlula
CaCO3 + SiO2→CaSiO3 + CO2
CaSiO3 + FeO + SiO2→2(Fe,Ca)SiO3
Ngaloo ndlela yenza i-iron oxide exutywe kunye neentsizi zesitovu kwaye zahlule
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Khupha i-cupric sulfide kwaye uvuthele emoyeni
Cu2S + O2→2Cu + SO2↑
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Xa kuyimfuneko, yenza i-electr eyongezelelweyoolyti-sulfuric acid kunye nesisombululo se-cupric sulfide
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Sebenzisa kwakhona igolide, isilivere kunye neplatinam ukusuka kwimiba emdaka eyomileyo
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Gcina ilothe ekhutshwe kwintsimbi ekrwada kwindawo engaphezulu kwendawo yokunyibilika
Ubhedu olunendawo yokunyibilika ephezulu luya kwahlula kwaye ludada ukuya phezulu