The All - Slime Striring Cyanidation Process in Gold Mining

1. Selelekela

Ho ntša khauta ka saekere ke mokhoa o sebelisoang haholo bakeng sa ho ntša khauta indastering ea merafo. E se e tumme ka lebaka la litšenyehelo tsa eona tse tlase le sekhahla se phahameng sa ho khutlisa khauta. Ts'ebetso ena e nolofalletsa tlhahiso ea khauta sebakeng seo, e leng se fokotsang haholo mathata a fapaneng a amanang le ho tsamaisoa ha khauta e ngata sebakeng se selelele. Ka lebaka leo, e thusa ho ntlafatsa katleho ea moruo ea likhoebo le ho boloka litšenyehelo. Leha ho le joalo, tšebeliso ea cyanide , reagent e chefo haholo, hammoho le phallo e telele ea ts'ebetso le lebelo le liehang la ho ntša khauta, ke mathata a hlokomelehang a ts'ebetso ea ho ntša khauta ka saekere . Ho ikamahanya hamolemo le mefuta e fapaneng ea li-ore tse nang le khauta, ho ntlafatsa ho hlaphoheloa ha khauta, le ho fokotsa litšenyehelo, ts'ebetso ea ho ntša khauta ka saekere e 'nile ea ntlafatsoa khafetsa.

2. Nts'etsopele ea Ts'ebetso ea Cyanidation

Matsatsing a pele a cyanidation, theknoloji ea ho lokisa liminerale e ne e sa ntlafatsoa hantle, 'me litšenyehelo tsa ho sila hantle ha ores li ne li phahame. Ho feta moo, ka nako eo, ho ne ho e-s'o hlahisoe mekhoa e tsoelang pele ea ho ntša metsi, ho ntša metsi le ho sefa ka bongata bo boholo. Ka hona, mohatong oa pele oa nts'etsopele ea mokhoa oa cyanidation, leaching ea percolation e ne e le mokhoa o ka sehloohong. Percolation leaching e ne e loketse feela bakeng sa ho alafa mahoashe a mahoashe. E ne e hloka hore ho se be le letsopa, seretse kapa litšila tse ling linthong tseo. Kahoo, pele ho leaching, ho ne ho hlokahala hore ho khethoe li-ores tse pshatlehileng, e leng mokhoa oa ho hlatsoa, ​​​​ho arola slime. Lihlahisoa tsa slime tse mahoashe li ile tsa kenngoa ka har'a litanka tsa leaching bakeng sa phekolo ea cyanidation ka percolation leaching.

Ka ntlafatso ea lisebelisoa tsa hydrometallurgical, joalo ka nts'etsopele e tsoelang pele ea litanka tse ferekaneng tsa slurry, li-filters, li-thickeners, joalo-joalo, ntle le ho sebelisa percolation leaching bakeng sa lehlabathe la ore, lihlahisoa tse arohaneng tsa slime li ka tšeloa ka litanka tse ferekaneng. Ka tsoelo-pele le ntlafatso ea mahlale a ho sila, a ho tsepamisa maikutlo le a ho sefa, cyanide leaching e se e fetohetse ho monyeng khauta ho tsoa ho ore ea khauta e entsoeng hantle. Ore tsohle li siiloe hantle ebe li kenngoa ka har'a litanka tse ferekaneng ka matla. Mokhoa ona o bitsoa "all - slime cyanidation" mokhoa. E na le melemo ea sekhahla se phahameng sa ho hlaphoheloa, lebelo le potlakileng la ho tsoa ha khauta, le potoloho e khuts'oane ea ho hula khauta, ka hona e khothalelitsoe le ho sebelisoa ka potlako.

3. Theknoloji e susumetsang ea Cyanidation le Mekhoa ea eona e Thusang ea Leaching

Matsatsing a pele a ts'ebetso ea khauta ea cyanidation ho sebelisoa mokhoa o susumetsang oa cyanidation, moea o phoroselang o ne o sebelisoa ho etsa oxidize khauta. Hamorao, ka tsoelo-pele ea saense ea ho ntšoa ha khauta le kutloisiso e ntseng e eketseha ea batho ea bohlokoa ba oksijene ho leaching, mekhoa e thusang ea ho ntša metsi e kang oksijene - leaching e matlafalitsoeng le mokelikeli - phase oxidant - leaching e thusang e hlahile. Tsena li kenyelletsa hydrogen peroxide kapa potassium permanganate - leaching e thusang, ammonia - cyanide - leaching e thusang, futhumatsang le khatello ea maikutlo - e thusang leaching, le lead nitrate - leaching e thusang.

Oksijene - leaching e matlafalitsoeng e ka eketsa bongata ba oksijene tsamaisong ea leaching, e khothalletsang khase ea khauta le ho ntlafatsa katleho ea leaching. Hydrogen peroxide le potasiamo permanganate, e le li-oxidants tse matla, li ka potlakisa ho phalla ha khauta ka har'a ore, kahoo ho matlafatsa lebelo la ho tsoa. Ammonia - cyanide - leaching e thusang e ka fetola tikoloho ea lik'hemik'hale ea tharollo ea leaching, e leng molemo bakeng sa ho qhibiliha ha khauta. Ho futhumatsa le khatello ea maikutlo - ho thusa ho tsoa mali ho ka eketsa sekhahla sa karabelo ka ho ntlafatsa mocheso le maemo a khatello, athe lead nitrate - leaching e thusang e ka bapala karolo ea matla ho karabelo ea cyanidation ea khauta.

4. Mathata le Litebello Tsa Kamoso

Leha ho na le melemo, ts'ebetso ea slime e susumetsang cyanidation e ntse e tobana le mathata. Tšebeliso ea cyanide e chefo haholo e hloka mehato e tiileng ea polokeho le taolo ea ts'ireletso ea tikoloho ho thibela ho lutla le tšilafalo ea cyanide. Ts'ebetso ea nako e telele ea ts'ebetso e boetse e hloka tšebeliso e ngata ea matla.

Nakong e tlang, lipatlisiso le nts'etsopele lefapheng lena li tla tsepamisa maikutlo ho nts'etsopele ea mekhoa e metle ea ho ntša khauta e baballang tikoloho le e sebetsang hantle. Sena se ka kenyelletsa ho lekola lisebelisoa tse ling tseo e seng tsa cyanide leaching ho nka sebaka sa cyanide, ho ntlafatsa ts'ebetso ea lits'ebetso tse ntseng li le teng ho fokotsa tšebeliso ea matla, le ho tsoela pele ho ntlafatsa lisebelisoa le phallo ea ts'ebetso ho ntlafatsa ts'ebetso e akaretsang ea ho ntšoa ha khauta. Ho feta moo, ka nts'etsopele e tsoelang pele ea mahlale a dijithale le a bohlale, ts'ebeliso ea mahlale ana ts'ebetsong eohle ea slime e susumetsang cyanidation e ka tlisa menyetla e mecha ea ho ntlafatsa katleho ea tlhahiso le ho fokotsa litšenyehelo tsa basebetsi.

Qetellong, ts'ebetso ea slime e susumetsang cyanidation e bapetse karolo ea bohlokoa indastering ea merafo ea khauta. Le hoja e na le bofokoli bo itseng, boqapi le ntlafatso e tsoelang pele ea thekenoloji e tla e thusa ho ikamahanya hamolemo le litlhoko tsa nts'etsopele ea indasteri le ho kenya letsoho ntlafatsong ea moshoelella ea indasteri ea merafo ea khauta.