Hlobo Luni Lwe-Ore Olufanele I-Cyanide Heap Leaching?

I-Cyanide heap leaching iyindlela esetshenziswa kakhulu embonini yokukhipha igolide ukuze kucutshungulwe izinhlobo ezithile zensimbi. Ukuqonda izici zama-ore ezifanele le nqubo kubalulekile ukuze kutholakale igolide ngendlela efanele.

1. Ukusebenza Okujwayelekile: Okuphansi - Izinsimbi Zebanga

The Ukukhishwa kwe-cyanide heap inqubo ngokuvamile ifaneleka kuphela ukwelashwa kwezinsimbi zegolide zebanga eliphansi, ikakhulukazi izinga eliphansi Insimbi ene-oxidized. Iningi lalawa ma-ore oxidized angaphezulu - ama-oxidized ores. Uma kubhekwa usayizi wezinhlayiya ze-ore emahhadla endleleni yokuvuza kwenqwaba, ukusebenzisana phakathi kwensimbi nensimbi. i-cyanide i-leaching agent ibuthakathaka. Ngenxa yalokho, izinga lokucwiliswa kwegolide aliphezulu njengezinye izindlela zokucwilisa, ezikhawulela ukusetshenziswa kwayo ikakhulukazi kuma-ore esezingeni eliphansi lapho izindleko - ukusebenza kahle kusengagcinwa khona. Izinga legolide le-ore elifanele ukucwiliswa kwenqwaba ye-cyanide livame ukusebangeni elingu-1.0 - 3.0 g/t, futhi yizinga legolide kuphela lediphozithi ngayinye elikhulu kuno-3.0 g/t.

2. I-Ore Isakhiwo kanye Nezimpawu Zokuhlanganisa

2.1 Izimpawu Zezinhlayiya Eziyigolide

• Okuhle noma Okuyisicaba - Izinhlayiya Zegolide Ezimise: Usayizi wezinhlayiyana ezishumekiwe zegolide kuma-ore afanelekile muhle noma uyisicaba. Lo mumo wenza kube lula ukuthi igolide lifakwe i-cyanide. Izinhlayiya zegolide ezinohlamvu olucolekile noma oluyisicaba zingathintana kangcono ne-cyanide leaching agent, zenze kube lula ukuncibilika kwegolide ngesikhathi senqumbi yokucwilisa. Isibonelo, kuma-ore asatshalalisiwe, igolide livame ukuba khona ezinhlayiyeni ezinhle ezisatshalaliswa kuyo yonke i-matrix ye-ore, evumela ukuthi i-cyanide leaching.

2.2 I-Porosity kanye ne-Permeability

• Izinsimbi ezixekethile, ezinezimbotshana, nezivuvukalayo: Insimbi kufanele ixege, ibe nezimbotshana, futhi ikwazi ukungena ngenxa ye-oxidation kanye nesimo sezulu. Lezi zakhiwo ezibonakalayo zizuzisa ukuthi isixazululo se-cyanide singene enqwabeni ye-ore. Lapho isixazululo se-cyanide singafinyelela ngempumelelo kumaminerali anegolide, ukusabela kwe-leaching kungenzeka. Izinsimbi ezifana nalezo esezinesimo sezulu eside isikhathi eside zivame ukwakha ukwakheka okunezimbotshana, okuvumela isixazululo secyanide ukuthi singene futhi sithinte izinhlayiya zegolide ezingaphakathi.

• Insimbi enegolide elifinyelelekayo ngokuchotshozwa: Kuma-ores anezimbotshana ezimbalwa ekuqaleni, igolide lingavezwa ngendlela yokuchoboza. Lesi isinyathelo esibalulekile sokulungiselela ngaphambi kokuvuzwa kwenqwaba ye-cyanide. Ngokuchotshozwa, izakhiwo eziphethe igolide zangaphakathi ziyaphuka, okwenza kube nokwenzeka nge-agent leaching ye-cyanide ukufinyelela igolide. Amanye ama-ore aqinile anegolide elikhiyelwe ngaphakathi angacutshungulwa ngale ndlela ukuze afanelekele ukucwiliswa kwenqwaba.

2.3 Ukwakheka Kwamakhemikhali

• Izinto Ezine-Acidic Ephansi kanye Nezinto Ezingezona Ezisebenzayo: I-ore kufanele iqukathe izinto ezine-acidic noma ezingaphansi futhi ingabi nezakhi noma ezingaphansi ezingasabela nge-cyanide. Izinto ezine-Acidic noma izakhi ezisebenzayo zingadla i-cyanide leaching agent. Isibonelo, uma kunenani elikhulu lamaminerali ane-asidi ensimbi, azosabelana ne-cyanide, anciphise inani le-cyanide elitholakalayo ekucwilisweni kwegolide futhi ngaleyo ndlela anciphise ukusebenza kahle kwenqubo yokuvuza kwenqwaba ye-cyanide.

• Alikho Igolide - Izinto Ezikhangisayo noma Ezimanzisa: Itshe akufanele libe nezinto ezimunca noma ezikhipha igolide elincibilikisiwe. Uma izinto ezinjalo zikhona, zingavimbela ukukhishwa kwegolide ngesikhathi senqubo yokukhipha inqwaba ye-cyanide, kuncishiswe izinga lokubuyiselwa kwegolide lilonke. Isibonelo, ezinye I-Carbon - amatshe ayigugu angase amunce i-complex ye-cyanide encibilikisiwe, okuvimbela ukucutshungulwa kwayo okuqhubekayo ukuze itholakale igolide.

3. Izinhlobo Eziqondile Zensimbi

3.1 I-Ore Ehlanganisiwe Esabalalisiwe

Ama-ore asatshalalisiwe alungele kakhulu ukucwiliswa kwenqwaba ye-cyanide. Kulawa ma-ore, igolide lisatshalaliswa ngokulinganayo esimweni esihle - esinezinhlamvu ngaphakathi kwe-rock matrix ene-oxidized. Inqubo ye-oxidation ivame ukwenza i-ore ibe nezimbotshana, futhi igolide elicolile litholakala kalula esixazululweni se-cyanide. Isibonelo, kwamanye amadiphozithi e-sandstone anegolide anesimo sezulu eside kanye ne-oxidation, igolide lisakazwa ku-matrix ye-sandstone, futhi i-cyanide heap leaching ingakhipha igolide ngempumelelo.

3.2 I-Sulfide Ore Negolide Elingahlobene Ngokuseduze

I-sulfide ores lapho igolide lingahlali eduze namaminerali e-sulfide nawo angaphathwa ngokucwiliswa kwenqwaba ye-cyanide. Kulezi zinsimbi, igolide aliboshiwe ngokuqinile ezingxenyeni ze-sulfide. Uma i-ore inqwabelene - ifakwe i-cyanide, i-cyanide ingancibilikisa igolide ngokukhetha ngaphandle kokuthintwa ngokweqile amaminerali e-sulfide. Kodwa-ke, uma igolide lihlotshaniswa eduze namaminerali e-sulfide, i-sulfide ingase idinge ukuphathwa kusengaphambili (njengokugazinga noma i-bio-oxidation) ukuze igolide lifinyeleleke ekulethweni kwe-cyanide.

3.3 Idiphozithi Yegolide Yegolide noma Idiphozithi Yegolide Yendawo Enezinhlayiya Zegolide Ezincane

Amadiphozithi egolide emithanjeni noma amadiphozi egolide anezinhlayiya ezincane zegolide noma indawo enkulu ethile yezinhlayiya zegolide afanele ukucwiliswa kwenqwaba ye-cyanide. Izinhlayiya ezincane zegolide zinendawo enkulu engaphezulu lapho zithintana nesisombululo se-cyanide, esikhuthaza ukusabela kokuvuza. Kumadiphozithi egolide emithanjeni, uma igolide likhona ngendlela ecolisekile - elinezinhlayiya ngaphakathi kwesakhiwo semithambo, futhi idwala elibamba i-vein line-porosity efanelekile kanye nokungena kwamanzi, ukucwiliswa kwe-cyanide heap kungaba indlela esebenzayo yokukhipha. Amadiphozithi egolide, lapho igolide liye laguguleka khona laguguleka laba yizinhlayiyana ezincane, nawo angacutshungulwa kusetshenziswa le ndlela.

Sengiphetha, i-cyanide heap leaching ifaneleka kakhulu kuma-ore ebanga eliphansi anezici ezithile zesakhiwo nokuhlanganisa, okuhlanganisa igolide elicolekileyo, i-porosity efanelekile, kanye nokuntuleka kwezinto eziphazamisayo. Ngokuqonda lezi zidingo ze-ore, imisebenzi yezimayini ingathuthukisa ukusetshenziswa kwe-cyanide heap leaching ukuze kukhishwe igolide ngendlela ephumelelayo nebizayo.