Tšebeliso ea Sodium Cyanide e le Setsi sa Khatello ea Koporo ka Morafong oa Copper-Molybdenum

Selelekela

Mokhoeng o rarahaneng oa ho ntlafatsa oli ea koporo-molybdenum, karohano e sebetsang ea liminerale tsa koporo le molybdenum e bohlokoa bakeng sa ho eketsa boleng ba moruo ba oli. Sodium cyanide e sebelisitsoe nako e telele e le sesebelisoa se matla sa ho fokotsa khatello ts'ebetsong ea ho phaphamala ho thibela liminerale tsa koporo ka mokhoa o ikhethileng, e leng se lumellang ho phaphamala ho khethehileng ha molybdenum. Sengoloa sena se hlahloba ts'ebeliso ea Sodium cyanide morafong o itseng oa koporo-molybdenum, se hlahloba mokhoa oa eona oa ho sebetsa, ts'ebetsong e sebetsang, le liphephetso le litharollo tse amanang le ts'ebeliso ea eona.

Mokhoa o sebetsang oa sodium cyanide joalo ka ho tepella maikutlo

Sodium cyanide (NaCN) ke sesebelisoa se sebetsang hantle haholo sa ho fokotsa khatello ea maikutlo bakeng sa liminerale tsa sulfide tse kang chalcopyrite (ore ea koporo). Tsamaisong ea flotation, Sodium Cyanide e arohana ka metsing ho lokolla li-ion tsa cyanide (CN⁻). Li-ion tsena tsa cyanide li ka arabela le li-ion tsa tšepe holim'a liminerale tsa koporo. Mohlala, ka chalcopyrite (CuFeS₂), li-ion tsa cyanide li ka theha metsoako e tsitsitseng ea tšepe-cyanide. Karabelo e ka emeloa ka tsela e latelang:

CuFeS₂ + 4CN⁻ → Cu(CN)₄²⁻ + FeS₂ + 2e⁻

Karabelo ena e qhalanya hantle li-ion tsa koporo tse holim'a chalcopyrite, e leng se etsang lera le hydrophilic la metsoako ea koporo-cyanide. Ka lebaka leo, bokaholimo ba minerale ea koporo bo fetoha bo sa thabiseng metsi haholo, e leng se fokotsang bokhoni ba eona ba ho khomarela lipululana tsa moea ka har'a sele ea flotation. Ka lehlakoreng le leng, molybdenite (MoS₂), minerale e ka sehloohong e nang le molybdenum, ha e sebetse hantle ho li-ion tsa cyanide tlas'a maemo a tloaelehileng a flotation. Molybdenite e na le bokaholimo ba tlhaho bo sa thabiseng metsi ka lebaka la sebopeho sa eona se nang le mekhahlelo, e leng se e lumellang ho phaphamala habonolo ke moqokeleli le lipululana tsa moea ts'ebetsong ea flotation ha liminerale tsa koporo li hatelloa ke sodium cyanide.

Thuto-pale: Moepo oa Koporo-Molybdenum

Litšobotsi tsa Ore

Morafo oa koporo-molybdenum o na le 'mele oa ore o nang le mineralogy e rarahaneng. Liminerale tse ka sehloohong tsa koporo ke chalcopyrite le bornite, ha molybdenum e le teng haholo e le molybdenite. Hangata tšepe e na le karolelano ea 0.8% ea koporo le 0.03% molybdenum. Kabo ea boholo ba likaroloana tsa liminerale le eona e fapane, ka liminerale tse ling tse nang le thollo e ntle tse bakang mathata bakeng sa karohano e hloahloa.

Phallo ea Ts'ebetso ea Phallo

1.Bulk Flotation Stage

• Mothating oa pele oa ts'ebetso ea ho phaphamala, ho sebelisoa mokhoa oa ho phaphamala ka bongata. 'Mokelli ea kang sodium isopropyl xanthate o eketsoa ho makhasi a ore ho phaphamala ka bobeli liminerale tsa koporo le molybdenum hammoho. Sena se theha bongata ba koporo-molybdenum concentrate. Sepheo sa mokhahlelo ona ke ho matlafatsa liminerale tsa bohlokoa tse tsoang ho liminerale tsa gangue.

2.Karohano Flotation Stage

• Ka mor'a ho phaphamala ka bongata, bongata bo bongata bo ntse bo sebetsanoa le ho feta sethaleng sa ho arohana ha flotation. Sodium cyanide e eketsoa ho makhasi nakong ena. Sekhahla sa tlatsetso ea sodium cyanide e laoloa ka hloko ho latela litaba tsa koporo ka har'a concentrate ea bongata le phello e lakatsehang ea karohano. Hangata, litekanyetso li fapana ho tloha ho 300 - 500 dikgerama ka tone ea bongata bo bongata.

• Litholoana li behiloe ka har'a letoto la litanka tsa maemo ho netefatsa kabo e tšoanang ea sodium cyanide le karabelo ea eona e sebetsang le liminerale tsa koporo. Ka mor'a hore boemo bo be teng, makhasi a kena ka liseleng tsa flotation. Liseleng tsa flotation, liminerale tsa koporo tse tepeletseng li teba ho ea tlaase e le mehatla, ha molybdenite e phaphamala ka holim'a metsi ka thuso ea li-bubble tsa moea 'me e bokelloa e le molybdenum concentrate.

3.Molybdenum Ho hloekisa Mehato

• The molybdenum concentrate e fumanoang ho tloha karohano flotation e tsoela pele ho sebetswa ka mekhahlelo e mengata ea ho hloekisa flotation. Mehatong ena ea ho hloekisa, ho ka eketsoa li-reagents tse eketsehileng ho ntlafatsa bohloeki ba molybdenum concentrate. Mehatla e tsoang methating ea ho hloekisa e atisa ho khutlisetsoa sebakeng se loketseng karohano kapa ts'ebetsong ea ho phalla ka bongata ho eketsa ho hlaphoheloa ha liminerale tsa bohlokoa.

Liphetho tsa Metallurgical

1.Molybdenum Recovery le Kereiti

• Pele ho ts'ebetsong ts'ebetso e ntlafalitsoeng ea karohano e thehiloeng ho sodium cyanide, ho hlaphoheloa ha molybdenum morafong ho ne ho le haufi le 60% ka kereiti ea molybdenum e ka bang 40%. Kamora ho lokisoa ka hloko ha tekanyo ea sodium cyanide le litekanyetso tsa ts'ebetso, ho hlaphoheloa ha molybdenum ho eketsehile ho feta 75%. Kereiti ea molybdenum concentrate le eona e ntlafalitsoe ho fihla ho 45% kapa ho feta maemong a mangata.

2.Copper Phello e Nyahamisang

• Tšebeliso ea sodium cyanide e fokolitse liminerale tsa koporo ka katleho. Likahare tsa koporo ka har'a concentrate ea ho qetela ea molybdenum li fokotsehile ho tloha ho hoo e ka bang 5% ho ea ho tlase ho 2%. Phokotso ena ea bohlokoa ea dikahare tsa koporo ka har'a concentrate ea molybdenum ha e ntlafatse feela boleng ba sehlahisoa sa molybdenum empa hape e fokotsa litšenyehelo tsa ho tsoela pele ho hloekisa mohopolo oa molybdenum ts'ebetsong ea ho qhibiliha.

Mathata le Litharollo ho Sebelisa Sodium Cyanide

Matšoenyeho a Tikoloho le Polokeho

1. Chefo ea Sodium Cyanide

• Sodium cyanide e chefo haholo. Ho lutla hofe kapa hofe kapa ho se sebetse hantle nakong ea merafo le ts'ebetso ea melemo ho ka baka tšokelo e kholo tikolohong le maphelong a batho. Haeba ho ka dutla ka phoso, li-ion tsa cyanide li ka kena ka potlako mobung le mehloling ea metsi, tsa baka tšilafalo le ho beha bophelo ba metsing le limela kotsing.

2.Tharollo

• Melao e Tiileng ea Polokeho : Morafo o kentse tšebetsong melao e tiileng ea polokeho bakeng sa polokelo, lipalangoang le tšebeliso ea sodium cyanide. Libaka tse khethehileng tsa polokelo tse nang le litanka tse nang le mabota a mabeli le litsamaiso tsa ho lemoha ho lutla li sebelisoa ho boloka sodium cyanide. Basebetsi bohle ba amehang ho sebetsaneng le sodium cyanide ba tlameha ho koetlisoa khafetsa ka polokeho, ho kenyeletsoa le mekhoa ea karabelo ea tšohanyetso haeba ho lutla ho ka hlaha.

• Kalafo ea Metsi a Litšila le a Litšila : Morafo o kentse litsamaiso tse tsoetseng pele tsa kalafo ea metsi a litšila. Kamora ts'ebetso ea ho phaphamala, mehatla le metsi a litšila a nang le sodium cyanide e setseng li phekoloa ho tlosa kapa ho ntša chefo ho cyanide. Mokhoa o mong o tloaelehileng ke tšebeliso ea hydrogen peroxide kapa hypochlorite ho kopanya li-ion tsa cyanide le ho li etsa mefuta e seng chefo joalo ka cyanate (CNO⁻) kapa naetrojene le Carbon dioxide. Metsi a litšila a phekoloang a hlahlojoa ka hloko ho netefatsa hore bongata ba cyanide bo fihlela litekanyetso tsa ho ntša metsi tikolohong pele a lokolloa.

Mathata a Ntlafatso ea Ts'ebetso

1.Ho fapana ha Boleng ba Ore

• Boleng ba ore morafong oa koporo - molybdenum bo ka fapana haholo. Lihlopha tse fapaneng tsa ore li ka ba le koporo e fapaneng - likarohano tsa molybdenum, lipina tsa mineralogical, le kabo ea boholo ba likaroloana. Phapang ena e ka ama katleho ea sodium cyanide e le ho tepella maikutlo. Ka mohlala, ho ores e nang le karolo e phahameng ea liminerale tsa koporo e ntle, ho ka 'na ha hlokahala sodium cyanide e eketsehileng ho finyella boemo bo tšoanang ba ho tepella maikutlong ka koporo.

2.Tharollo

• Tlhahlobo ea Tšepe ea Nako ea Sebele : Morafo o tsetetse lisebelisoa tse tsoetseng pele tsa tlhahlobo ho etsa tlhahlobo ea nako ea sebele ea tšepe e kenang. X-ray fluorescence (XRF) le laser-induced breakdown spectroscopy (LIBS) li sebelisoa ho fumana kapele sebopeho sa lik'hemik'hale tsa tšepe. Ho latela liphetho tsa tlhahlobo, tekanyo ea sodium cyanide le li-reagent tse ling e ka fetoloa ka nako e loketseng.

• Taolo ea Ts'ebetso e Thehiloeng ho Mohlala : Mohlala oa lipalo o ntlafalitsoe ho bolela esale pele tekanyo e ntle ea sodium cyanide le liparamente tsa ts'ebetso ho latela litšobotsi tsa ore. Mohlala ona o ela hloko lintlha tse kang karolelano ea koporo le molybdenum, sebopeho sa mineralo, le boholo ba likaroloana. Sistimi ena ea taolo ea ts'ebetso e thehiloeng ho mohlala e lumella taolo e nepahetseng haholoanyane ea ts'ebetso ea flotation, e ntlafatsang katleho ea karohano ea koporo le molybdenum esita le ha ho tobane le phapang ea boleng ba ore.

fihlela qeto e

Tšebeliso ea sodium cyanide e le sesebelisoa sa ho fokotsa khatello ea koporo ts'ebetsong ea ho phaphamala e ipakile e sebetsa hantle ho fihlelleng karohano ea liminerale tsa koporo le molybdenum. Ka taolo e hlokolosi ea tekanyo ea sodium cyanide, ntlafatso ea phallo ea ts'ebetso ea ho phaphamala, le ho kenya tšebetsong mehato e tiileng ea tikoloho le polokeho, morafo o khonne ho ntlafatsa ho hlaphoheloa le boemo ba molybdenum concentrate ha ka katleho e fokotsa liminerale tsa koporo. Leha ho le joalo, liphephetso tse amanang le tšebeliso ea sodium cyanide, tse kang matšoenyeho a tikoloho le polokeho le ntlafatso ea ts'ebetso ha ho tobane le phapang ea boleng ba ore, li hloka tlhokomelo e tsoelang pele le ts'ebetsong ea litharollo tse loketseng. Ha indasteri ea merafo e ntse e ea mekhoeng e tsitsitseng le e sebetsang haholoanyane, lipatlisiso tse ling le nts'etsopele lia hlokahala ho fumana lintho tse ling tse fokotsang khatello ea maikutlo kapa ho ntlafatsa ts'ebetso e teng e thehiloeng ho sodium cyanide ho fokotsa tšusumetso ea eona tikolohong ha ho ntse ho bolokoa ts'ebetso e phahameng ea tšepe.