Melemo le Mefokolo ea Sodium Cyanide ho Leaching ea Khauta

Lefapheng la merafo ea khauta, mokhoa oa ho ho ntsha kgauta ke ea bohlokoa ka ho fetisisa. Sodium cyanide haesale e le reagent ea bohlokoa ho ho tsoa ha khauta tshebetso. Ho utloisisa melemo le mathata a eona ho bohlokoa bakeng sa basebetsi ba merafong le litsebi tsa tikoloho, kaha e thusa ho etsa liqeto tse nang le tsebo mabapi le tšebeliso ea eona e tsoelang pele le ho hlahloba mekhoa e meng.

1. Melemo ea Sodium Cyanide ka Gold Leaching

Bokhoni bo Phahameng ka ho Fetisisa Khauta

O mong oa bohlokoa ka ho fetisisa melemo ea ho joalo

dum cyanide ho leaching ea khauta ke bokhoni ba eona bo phahameng ba ho qhaqha khauta. Li-ion tsa cyanide li etsa li-complexes tse tsitsitseng tse nang le li-ion tsa khauta. Sena se lumella ho ntšoa ha khauta ho tsoa leha e le lirafshoa tsa boemo bo tlase. Karabelo ea lik'hemik'hale lipakeng tsa khauta, oksijene le sodium cyanide ka tharollo ea aqueous e ka hlalosoa e le:

4Au + 8NaCN + O₂ + 2H₂O → 4Na[Au(CN)₂] + 4NaOH. Karabelo ena e nolofalletsa ho ntšoa ha khauta ka mokhoa o batlang o le ho feletseng, e leng ho etsang hore e be le chai e ngata ho tsoa licheng tse chekiloeng.

Litšenyehelo - Ka katleho

Sodium cyanide e theko e tlaase - e sebetsa hantle ha e bapisoa le mefuta e mengata e meng ea li-leaching agents. Ts'ebetso ea eona ea tlhahiso e thehiloe hantle, 'me e fumaneha habonolo ka bongata. Lik'hamphani tsa merafo li ka reka Sodium cyanide ka theko e ntle, e leng ea bohlokoa bakeng sa ho boloka phaello, haholo ha ho sebetsanoa le lits'ebetso tse kholo. Ho feta moo, lisebelisoa tse batlang li le bonolo tse hlokahalang bakeng sa ts'ebetso ea cyanide leaching li fokotsa litšenyehelo.

Ho lumellana le Mefuta e sa tšoaneng ea Ore

Sodium cyanide e ka sebelisoa ka mefuta e mengata ea khauta e nang le ores. Hore na tšepe e lokolohile - ho siloa kapa ho na le liminerale tse rarahaneng tsa sulfide, cyanide leaching hangata e ka ntlafatsoa ho ntša khauta. Ho feto-fetoha ha maemo ho etsa hore e be khetho e ratoang bakeng sa mesebetsi e mengata ea merafo lefatšeng ka bophara, kaha e fokotsa tlhokahalo ea ore e theko e boima - mekhoa e khethehileng ea ho sebetsa.

2. Mefokolo ea Sodium Cyanide ka Gold Leaching

Likotsi Tsa Tikoloho

Ea bohlokoa ka ho fetisisa drawback ea Sodium cyanide ke chefo ea eona e feteletseng. Cyanide e kotsi haholo ho liphoofolo tse phelang metsing, linonyana le liphoofolo tse anyesang. Ha cyanide e tšoloha sebakeng sa merafo, e ka silafatsa mehloli ea metsi e haufi, e leng se lebisang lefung la litlhapi le lintho tse ling tse phelang metsing. Esita le cyanide e nyenyane ka metsing e ka senya tikoloho eohle. Ka mohlala, cyanide e ka thibela mosebetsi oa cytochrome c oxidase liseleng, ho thibela tšebeliso e tloaelehileng ea oksijene ho phefumoloha ha aerobic.

Litlhoko tse thata tsa Taolo

Ka lebaka la chefo ea eona, tšebeliso ea sodium cyanide merafong ea khauta e tlas'a melao e thata. Lik'hamphani tsa merafo li tlameha ho tsetela ho litsamaiso tse tsoetseng pele tsa taolo ea litšila ho thibela cyanide ho kena tikolohong. Ba hloka ho kenya ts'ebetsong mananeo a ho beha leihlo ho netefatsa hore maemo a cyanide metsing le moeeng a ka har'a meeli e amohelehang. Litlhoko tsena tsa taolo li eketsa litšenyehelo tsa ts'ebetso ea lik'hamphani tsa merafo, kaha li tlameha ho aba lisebelisoa ho ikamahanya le melaoana.

Likotsi tsa Bophelo bo Botle ho Basebetsi

Basebeletsi ba amehang ts'ebetsong ea ho tsoa ha khauta ba sebelisa sodium cyanide ba kotsing ea ho pepeseha. Ho hema kapa ho kopana le letlalo le cyanide ho ka baka mathata a tebileng a bophelo bo botle, ho kopanyelletsa le hlooho e opang, ho tsekela, ho nyekeloa ke pelo, 'me maemong a boima, lefu. Likhamphani tsa merafo li hloka ho fana ka koetliso e batsi ea polokeho le lisebelisoa tsa ts'ireletso ho basebetsi ba bona ho fokotsa likotsi tsena. Leha ho le joalo, likotsi li ntse li ka hlaha, tse behang bophelo ba basebetsi kotsing.

Qetellong, sodium cyanide e fana ka melemo e ikhethang mabapi le ts'ebetso, litšenyehelo - katleho, le ho lumellana ha ore ts'ebetsong ea khauta ea leaching. Leha ho le joalo, likotsi tsa eona tsa tikoloho, litlhoko tse tiileng tsa taolo, le likotsi tsa bophelo bo botle ba basebetsi li ke ke tsa hlokomolohuoa. Ha indasteri ea merafo e ntse e hatela pele, ho na le tlhokahalo e ntseng e hola ea ho hlahisa mekhoa e meng ea leaching eo ka bobeli e leng botsoalle tikolohong le moruong, ha ho ntse ho bolokoa litekanyetso tsa boleng bo holimo tsa ho ntšoa tse fihlelletsoeng hajoale ka sodium cyanide.