Izindlela Nezinqubo Zokukhipha I-Cyanide Ekuphakameni Kwezinsimbi Ze-Sulfide

I-Cyanidation leaching iyinqubo esetshenziswa kakhulu embonini yezimayini zegolide. Nokho, i-cyanidation leaching tailings ngokuvamile kubangela izinselele ezinkulu. Lezi zinsalela ngokuvamile ziqukethe ukugxila okuphansi ama-cyanides, igolide nesiliva elingakhishiwe, kanye namaminerali athwala njenge-chalcopyrite ne-pyrite. Izindawo ze i-sulfide ores kule tailings kuvinjwa ngu I-sodium cyanide ngesikhathi senqubo ye-cyanidation. Nakuba izinga le-ore liphansi futhi i-cyanide ukugxilisa ingqondo akuphakeme kakhulu, umthamo omkhulu wemisila ubenza bakhathazeke kakhulu.

Njengamanje, kunezindlela ezintathu ezijwayelekile zokwelapha ze-cyanidation leaching tailings: ukwenziwa kusebenze kwe-asidi, ukwenziwa kusebenze kwe-oxidant, kanye ne-copper - ukwelashwa kukasawoti.

Indlela yokwenza i-Acid

Indlela yokwenza i-asidi isebenze ihlanganisa ukungeza i-sulfuric acid noma i-oxalic acid ukuze kusebenze izinsalela. Nakuba le ndlela ingenza kusebenze ama-tailings ngokuphumelelayo, inezithiyo eziningana. Okokuqala, ijwayele ukukhiqiza igesi ye-hydrogen cyanide enobuthi neyingozi. Nakuba igesi etholiwe ye-hydrogen cyanide ingasetshenziswa kabusha, umsebenzi ubeka engcupheni enkulu. Okwesibili, indawo ene-asidi ingagqwala kalula imishini namapayipi, okudinga izinyathelo zokulwa nokugqwala kwezinga eliphezulu.

Indlela Yokwenza I-Oxidant

Endleleni yokwenza kusebenze i-oxidant, i-hydrogen peroxide noma i-hypochlorite yengezwa ukuze kusebenze imisila. Nokho, kunzima ukulawula ngokunembile umthamo we-oxidant. Amanani eqile kancane angakhipha ama-sulfide ores, anciphise ukutholakala kwawo. Ngaphezu kwalokho, ama-oxidants amaningi ayagqwala emzimbeni womuntu, okwenza kube usongo empilweni yezisebenzi.

Ithusi - Indlela Yokwelapha Usawoti

Indlela yokwelapha i-copper - usawoti isebenzisa usawoti we-inorganic njenge-copper sulfate noma usawoti we-iron ukuze kusebenze umsila. Noma kunjalo, imithethonqubo yezemvelo inezidingo eziqinile zokukhishwa kwama-ion ethusi emanzini angcolile. Ukwengeza, ama-ion ethusi angama-activators we-sphalerite ne-pyrite. Ngakho-ke, le ndlela ayifanele i-cyanidation tailings equkethe kokubili i-sphalerite ne-pyrite, futhi ayihambisani nemvelo.

Sengiphetha, ukwelashwa kwe-cyanidation leaching tailings kuveza isethi eyinkimbinkimbi yezinselelo. Ngaphandle kokuqukethwe okuphansi kwe-cyanide, izindleko eziphezulu zokutshala izimali kanye nezimfuneko eziqinile zokuphepha nezemvelo zenza kube nesidingo sokuhlola izindlela zokwelapha ezintsha, ezisebenza kahle kakhulu neziqhubekayo. Lokhu kungase kuhilele inhlanganisela yamasu akhona noma ukuthuthukiswa kwezindlela ezintsha ngokuphelele zokubhekana nokukhathazeka kwezemvelo nezomnotho okuhlobene nalezi zinsalela.