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

Inqubo yokukhipha inqwaba ye-Cyanide ngokuvamile ifanelekela kuphela ukwelashwa kwama-ore egolide asezingeni eliphansi, ikakhulukazi ama-ore e-Oxidized asezingeni eliphansi . Iningi lala ma-ore a-oxidized angama-ore angaphezulu a-oxidized. Njengoba kunikezwe usayizi wezinhlayiya ze-ore eziqinile enkambisweni yokukhipha inqwaba, ukusebenzisana phakathi kwe-ore kanye ne- ejenti yokukhipha i-cyanide kubuthakathaka kakhulu. Ngenxa yalokho, izinga lokukhipha igolide aliphezulu njengezinye izindlela zokukhipha, okuvimbela ukusetshenziswa kwalo ikakhulukazi kuma-ore asezingeni eliphansi lapho ukusebenza kahle kwezindleko kusengagcinwa khona. Izinga legolide lama-ore afanelekela ukukhishwa kwenqwaba ye-cyanide liphakathi kuka-1.0 - 3.0 g/t, futhi izinga legolide le-ore kuphela lamadiphozithi ngamanye likhulu kune-3.0 g/t.

2. I-Ore Isakhiwo kanye Nezimpawu Zokuhlanganisa

2.1 Izimpawu Zezinhlayiya Eziyigolide

• Izinhlayiya zegolide Ezincane Noma Eziyisicaba : Usayizi wezinhlayiya zegolide ezifakwe kuma-ore afanele uncane noma uyisicaba. Lesi simo senza kube lula ukuthi igolide likhishwe yi-cyanide. Izinhlayiya zegolide ezicolekile noma eziyisicaba zingaxhumana kangcono ne-ejenti yokukhipha i-cyanide, okwenza kube lula ukuncibilika kwegolide ngesikhathi senqubo yokukhipha inqwaba. Isibonelo, kuma-ore asakazwe nge-oxidized, igolide livame ukuba khona ezinhlayiyeni ezincane ezisakazwe kuyo yonke i-ore matrix, okusiza ekukhishweni kwe-cyanide.

2.2 I-Porosity kanye ne-Permeability

• Ama-Ore Akhululekile, Anezimbobo, Futhi Angena : I-ore kufanele ikhululeke, ingenazimbobo, futhi ingena ngenxa ye-oxidation kanye nokuwohloka. Lezi zakhiwo zomzimba ziwusizo kwisisombululo se-cyanide ukuthi singene enqwabeni ye-ore. Lapho isixazululo se-cyanide singafinyelela ngempumelelo amaminerali aphethe igolide, ukusabela kokuvuza kungenzeka. Ama-Ore afana nalawo agugile isikhathi eside avame ukwakha isakhiwo esinezimbobo, okuvumela isixazululo se-cyanide ukuthi singene futhi sithinte izinhlayiya zegolide ezingaphakathi.

• Amatshe Anegolide Elifinyelelekayo Ngokuchoboza : Kumatshe anezimbobo ezimbalwa ekuqaleni, igolide lingadalulwa ngendlela yokuchoboza. Lesi yisinyathelo esibalulekile sokulungiselela ngaphambi kokukhipha inqwaba ye-cyanide. Ngokuchoboza, izakhiwo zangaphakathi zegolide ziyaphuka, okwenza kube nokwenzeka ukuthi i-cyanide leaching agent ifinyelele igolide. Amanye amatshe aqinile anegolide elivalelwe ngaphakathi angacutshungulwa ngale ndlela ukuze afanelekele ukukhipha inqwaba.

2.3 Ukwakheka Kwamakhemikhali

• Izinto Ezine-Acidic Eziphansi kanye Nezakhi Ezingaphenduli : I-ore kufanele iqukathe izinto ezingena-acidic noma ezincane kanye nezakhi ezingena-acidic ezingasabela ne-cyanide. Izinto ezine-acidic noma izakhi ezisebenzayo zingadla i-cyanide leaching agent. Isibonelo, uma kunenani elikhulu lamaminerali ane-acidic ku-ore, zizosabela ne-cyanide, zinciphise inani le-cyanide etholakalayo yokukhipha igolide futhi ngaleyo ndlela zinciphise ukusebenza kahle kwenqubo yokukhipha inqwaba ye-cyanide.

• Izinto Ezingenawo Ama-Ore Azinawo Ama-Ore Azinawo Ama-Ore : I-ore akufanele iqukathe izinto ezimunca noma ezikhipha igolide elincibilikisiwe. Uma izinto ezinjalo zikhona, zingavimbela ukukhishwa kwegolide ngesikhathi senqubo yokukhipha i-cyanide heap, zinciphise izinga lokubuyiselwa kwegolide. Isibonelo, amanye ama-ore acebile nge- Carbon angase amunca i-complex ye-gold-cyanide encibilikisiwe, okuvimbela ukucutshungulwa kwayo okuqhubekayo ukuze kutholakale 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.