Ukuhlomula kwegolide

Ukuhlomula kwegolide

Izinsiza zegolide eziphikisayo ngokuvamile zingahlukaniswa zibe izinhlobo ezintathu eziyinhloko:
Uhlobo lokuqala i-arsenic ephezulu, i-carbon, ne-sulphur ore yegolide yohlobo.Kulolu hlobo, okuqukethwe kwe-arsenic kungaphezu kuka-3%, okuqukethwe kwekhabhoni ku-1-2%, kanye nesulfure ku-5-6%.Ngokusebenzisa inqubo evamile yokukhipha igolide le-cyanide, izinga lokucwiliswa kwegolide ngokuvamile lingama-20-50%, futhi inani elikhulu le-Na2CN liyasetshenziswa.Lapho ithuthukiswa ubuchwepheshe be-flotation, nakuba izinga lokugxilisa igolide eliphakeme lingatholakala, ukugxilisa ingqondo kuqukethe amazinga aphezulu ezakhi eziyingozi njenge-arsenic, ikhabhoni, ne-antimony.Kuzoba nomthelela esinyathelweni esilandelayo senqubo yokukhipha igolide.

Uhlobo lwesibili insimbi enegolide lapho igolide ligoqwe ngamaminerali e-ganggue nokungcola okuyingozi ngezinhlayiya ezinhle namafomu amancane.Kulolu hlobo, okuqukethwe kwe-metal sulfide kuncane, cishe ku-1-2%, futhi kufakwe kumaminerali e-ganggue.Izinhlayiya zegolide ezinhle kumakristalu zibalelwa ku-20-30%.Izindlela ezivamile zokukhipha i-cyanide noma izindlela zokunothisa ezintantayo zisetshenziselwa ukukhipha igolide, kodwa izinga lokutholwa kwegolide liphansi kakhulu.

Uhlobo lwesithathu insimbi yegolide enobudlelwane obuseduze phakathi kwegolide, i-arsenic nesibabule.Isici saso ukuthi i-arsenic nesibabule yizona zakhi eziyinhloko zamaminerali egolide, futhi okuqukethwe kwe-arsenic kuphakathi.Inkomba yegolide yalolu hlobo lwensimbi esebenzisa inqubo eyodwa yokukhipha igolide ye-cyanide iphansi kakhulu.Uma igolide licetshiswa nge-flotation, izinga eliphezulu lokubuyisela lingatholakala, kodwa kunzima ukulithengisa ngoba liqukethe i-arsenic eningi.

ubuchwepheshe bezimayini

ukukhethwa kwamakhemikhali

1. Ukumbiwa kwegolide nokuhlukaniswa

Izindlela zokuzuza ngamakhemikhali ezimayini zegolide ikakhulukazi zihlanganisa indlela yamanzi afudumele kanye nendlela ye-cyanide.Indlela exubile indala uma kuqhathaniswa futhi ilungele igolide elilodwa elimahhadla.Nokho, kungcolisa ngokuqhathaniswa futhi kancane kancane kuye kwathathelwa indawo ukuhlakanipha.Kunezindlela ezimbili ze-cyanidation, i-cyanidation eshukumisayo kanye ne-percolation cyanidation.

2. Imishini yokukhetha amakhemikhali negolide

Indlela yamakhemikhali isetshenziselwa ukukhetha insimbi yegolide, ikakhulukazi indlela yasemkhathini.Izinto ezisetshenziswayo zihlanganisa idivayisi yokushintshanisa impushana ye-zinc, ithangi elinyakazayo elivuzayo, njll. Umshini wokushintsha impushana ye-zinc iyithuluzi elifaka udaka lwegolide esikhundleni se-leachate.

I-leaching enyakazayo ithangi iyithuluzi lokunyakazisa i-slurry.Uma usayizi wezinhlayiya ze-ore ungaphansi kwe-200 mesh futhi ukugxila kwesisombululo kungaphansi kwama-45%, ukumiswa kungakhiwa ukwandisa ukugcwala kwegolide elincibilikisiwe ethangini le-adsorption futhi kusheshiswe isikhathi sokuvuza.