Iqhaza le-nitrate yomthofu ekulethweni kwezimayini zegolide

I-whole mud cyanide leaching iyinqubo yakudala nethembekile yokukhipha igolide, esetshenziswa kabanzi ekukhiqizeni namuhla.Eminyakeni yamuva nje, ukuze kwandiswe ukukhiqizwa kwegolide, ukukhiqiza igolide esizeni, futhi kwandiswe ukusebenza kahle kokukhiqizwa kwamabhizinisi, izimayini zegolide ezihlukahlukene zandise ububanzi bokusetshenziswa kwenqubo yazo yodaka lonke lwe-cyanide.

Izinhlayiya zegolide ezishunyekiwe kuma-ore ahlukahlukene ngokuvamile ziyigolide eliphakathi nelicolisekile, futhi isimo segolide elivela kakhulu igolide elixubile kanye negolide lokuqhekeka.Lesi simo esishunyekiwe sivumela ukucwiliswa kwe-cyanide yodaka egcwele, kodwa kusenenani elincane lezinhlayiya ezinhle ezisongwe ngegolide nge-ore ehlukahlukene, ezoba nomthelela othile ezingeni lokucwiliswa kwegolide.Imiphumela yocwaningo lwamaminerali ikhombisa ukuthi uhlobo ngalunye lwe-ore luyitshe legolide okunzima ukulikhipha, futhi inani elikhulu le-cyanide liyasetshenziswa ngesikhathi sokucwiliswa kwe-cyanide, okuthinta izinga lokucwiliswa kwegolide.
Inqubo evamile yokucwiliswa kwe-cyanide yodaka lonke ayidli nje kuphela i-cyanide eningi, kodwa futhi inenani eliphansi le-leaching yegolide eliphakathi nendawo neliphezulu eline-sulfide equkethe ukungcola okuningi okuyingozi njengethusi, i-arsenic, nesulfure.Ukwengeza i-nitrate eholayo yokwelashwa ngaphambi kokucwiliswa kunganciphisa ukulahleka kwe-cyanide futhi kukhuphule izinga lokuvuza.
Ukwengeza i-nitrate yomthofu ngaphambi kokuvuza kunganciphisa okuqukethwe kwezinhlayiya zensimbi ezincibilikayo ku-slurry, ngaleyo ndlela kunciphise ukusetshenziswa kwe-sodium cyanide.Ezimayini zegolide, thatha uhlobo lwe-ore-flavor high-flavor pyrrhotite-type gold-2-copper ore njengesibonelo.Okuqukethwe kwe-pyrrhotite kufinyelela ku-23130%.Esakhiweni samangqamuzana e-pyrrhotite, kune-athomu yesulfure eboshwe kancane efakwa i-oxid kalula ukuze yakhe i-soluble sulfide, edla inani elikhulu le-cyanide ngesikhathi senqubo yokukhishwa kwe-cyanide futhi andise isikhathi sokwelashwa.Futhi ukwengezwa kwe-nitrate yomthofu kunganciphisa ukuba khona kwe-sulfide ions ku-slurry kanye ne-soluble sulfide ehleliwe, ngaleyo ndlela kunciphise ukusetshenziswa kwe-sodium cyanide futhi kuthuthukise izinga lokuvuza.