Tšebeliso ea Sodium Cyanide ho Indasteri ea Metallurgical le Ho arolelana Boiphihlelo

Selelekela

Sodium cyanide (NaCN), e le sesebelisoa se sebetsang hantle sa ho kopanya le ho tsoa mali, e bapala karolo ea bohlokoa Indasteri ea Metallurgical. Lintho tsa eona tse ikhethang tsa lik'hemik'hale li e nolofalletsa ho etsa li-complexes tse tsitsitseng tse nang le li-ion tse sa tšoaneng tsa tšepe, kahoo li finyella ho ntšoa, ho arohana le ho hloekisa litšepe. Sengoliloeng sena se tla sekaseka lits'ebetso tsa mantlha tsa Sodium cyanide tšimong ea metallurgical le ho akaretsa lintlha tsa bohlokoa tsa ts'ebetso ho latela phihlelo e sebetsang.

I. Tšebeliso ea Core ea Sodium Cyanide ho Indasteri ea Metallurgis

1.Tlhahiso ea Khauta (Cyanidation Process for Gold Extraction)

• Molao-motheo: Sodium cyanide e kopana le khauta boteng ba oksijene ho etsa metsoako e qhibilihang ea khauta ea cyanide (joalo ka [Au(CN)₂]⁻). Khauta e ntan'o fumanoa ka "activated carbon adsorption" kapa "zinc displacement".

• le menyetla: E na le matla a ho ikamahanya le maemo ho ores ea khauta ea boemo bo tlase le ores e rarahaneng, 'me sekhahla sa leaching se ka fihla ho feta 90%.

• Case: Morafo oa khauta o ekelitse sekhahla sa ho khutlisa khauta ho 92% ka ho ntlafatsa mahloriso a sodium cyanide (0.05% -0.1%) le nako ea ho tsoa (lihora tse 24-48).

2.Electroplating le Metal Surface Treatment

• morero: E le tlatsetso ho electroplating tharollo, e sebelisoa bakeng sa litšepe tsa electroplating tse kang koporo, zinki le silevera, tse ka ntlafatsang ho tšoana le ho khomarela ha seaparo.

• Litlhokomelo: Bongata ba cyanide bo hloka ho laoloa ka thata ho qoba masala a feteletseng, a ka lebisang tšilafalong ea tikoloho.

3.Metal karohano le tlhoekiso

• Likarolo tsa kopo: Khetha ka ho khetha litšepe tse shebiloeng (joalo ka nickel le cobalt) ho tsoa ho ores ea polymetallic, kapa u tlose li-ion tse sa hloekang (joalo ka tšepe le loto).

• Lintlha tsa Teknoloji: Finyella ho rarahana ha mohato oa litšepe tse fapaneng ka ho fetola boleng ba pH le litekanyetso tsa Sodium cyanide.

II. Boiphihlelo ba Bohlokoa le Ntlafatso ea Setsebi Tšebelisong ea Sodium Cyanide

1.Taolo ea Boiketlo le Tekanyetso

• Epirical Rule: Nakong ea leaching ea khauta, motsoako oa sodium cyanide hangata ke 0.03% -0.1%, 'me e hloka ho lokisoa ho latela thepa ea ore (joalo ka carbon content le sulfide content).

• Case: Morafo o fumane hore tšebeliso ea sodium cyanide e eketsehile ka mokhoa o sa tloaelehang. Ka mor'a lipatlisiso, ho ile ha fumanoa hore sebabole se ka har'a tšepe se feta tekanyo. Bothata bo ile ba rarolloa ka mor'a ho sebelisa mokhoa oa pele oa phekolo (ho halika kapa oxidation).

2.Optimization of Leaching Conditions

• boleng ba pH: Ho boloka tikoloho ea alkaline (pH 10-11) ho ka thibela tlhahiso ea khase ea hydrogen cyanide le ho ntlafatsa Leaching Katleho ka nako e tšoanang.

• mocheso: Ho futhumatsa ho loketseng (30-40 ° C) ho ka potlakisa karabelo, empa tšebeliso ea matla le litšenyehelo li hloka ho leka-lekana.

3.Tshireletso ea Tikoloho le Taolo ea Polokeho

• Phekolo ea metsi a litšila: Sebelisa mokhoa oa alkaline chlorination (sodium hypochlorite + sodium hydroxide) ho senya cyanide ho etsa bonnete ba hore ho tsoa ho kopana le maemo (tekanyo ea CN⁻ e ka tlase ho 0.5 mg / L).

• Ts'ireletso ea Ts'ireletso: Hlomella ka mohala oa tlhahiso o koaletsoeng ka botlalo, sistimi ea ho beha leihlo ka boiketsetso, le sesebelisoa sa ho fafatsa boemo ba tšohanyetso. Basebelisi ba tlameha ho roala liaparo tse sireletsang lik'hemik'hale le limaske tsa khase.

III. Mathata a Tloaelehileng le Litharollo

1.Kotsi ea Chefo ea Cyanide

• Mehato e thibelang: Kamehla hlahloba ho tiea ha lisebelisoa 'me u qobe ho kopana le tharollo ea cyanide ka lintho tse nang le asiti (ho thibela ho hlahisa khase e chefo e ngata ea HCN).

• Kalafo ea Tšohanyetso: Hang-hang hlatsoa sebaka sa ho kopana le letlalo ka metsi a mangata a hloekileng. Haeba motho a ka noa ka phoso, motho ea hlokofalitsoeng o lokela ho batla phekolo hang-hang 'me a ente ka sodium thiosulfate bakeng sa ho ntša chefo.

2.Decrease in Leaching Effective

• Mabaka a ka bang teng: Tekanyo e sa lekaneng ea oxidation ea ore, ho bola ha sodium cyanide (ka lebaka la khanya kapa mocheso o phahameng), le tšitiso ea li-ion tse sa hloekang (tse kang loto le koporo).

• Solutions: Eketsa oxidant (joaloka hydrogen peroxide) ho khothaletsa oxidation ea ore, kapa ho tlosa litšila ka ts'ebetso ea pele.

IV. Mekhoa ea Bokamoso le Mahlale a Mang

• Litheknoloji tsa Leaching tsa Cyanide-Free: Mekhoa e tala e kang mokhoa oa thiourea le mokhoa oa bioleaching o ntse o hlaha butle-butle, o ka fokotsang likotsi tsa tikoloho.

• Bohlale Control: Tlhokomelo ea nako ea 'nete ea li-parameter joalo ka bongata ba sodium cyanide le boleng ba pH ka li-algorithms tsa AI ho fihlela taolo e nepahetseng.

fihlela qeto e

Sodium cyanide e na le ts'ebetso e phahameng le likotsi tse ka bang teng indastering ea metallurgic. Tšebeliso e utloahalang e ipapisitse le moralo oa ts'ebetso ea mahlale, taolo e tiileng ea polokeho, le ntlafatso e tsoelang pele ea theknoloji. Ka ho ntlafatsa likarolo tsa ts'ebetso le ho matlafatsa Tšireletso ea tikoloho mehato, boleng ba eona bo ka eketsoa 'me likotsi li fokotsehile, ho khothalletsa indasteri hore e ntlafatse ka tsela e tala le e tsitsitseng.