Indima ebalulekileyo yeSodium Cyanide kwiGold Ore Heap Leaching

Kwicandelo lokumbiwa kwegolide, ukucocwa kwegolide ngendlela ye-heap kuye kwavela njengendlela eyamkelweyo ngokubanzi nengabizi kakhulu yokukhupha igolide kwi-ore ezikumgangatho ophantsi. Phakathi kwezinto ezahlukeneyo zenkqubo yokucocwa kwegolide ngendlela ye-heap, i-sodium cyanide idlala indima ebalulekileyo neyimfuneko.

Intshayelelo yeGold Heap Leaching

Igolide yimfumba yegolide ekrwada ekrwada ekrwada ekumgangatho ophantsi okanye iintsalela zezimbiwa ezidadayo zifunjwa kwiphedi eyakhiwe ngokukodwa. Intsimbi ekrwada ke iye ixhomekeke kwisenzo sesisombululo sentsimbi, esityhutyha kwimfumba yentsimbi, sinyibilikise igolide ekhoyo kwintsimbi ekrwada. Le ndlela ifaneleke ngokukodwa ukunyanga imiqulu emikhulu yegolide ekrwada ekumgangatho ophantsi, njengoko ibonelela ngendlela elula neyoqoqosho yokukhupha igolide xa kuthelekiswa neenkqubo zokusila nokunyibilikisa ezintsonkothileyo nezixabisa kakhulu.

Indima yeSodium Cyanide ekuNyibilikeni kweGolide

I-Chemical Reaction Mechanism

I-Sodium cyanide (NaCN) sisithako esinamandla sokukhupha igolide kwi- gold heap leaching . Isitshixo sokusebenza kwayo sixhomekeke ekubeni ikwazi ukusabela negolide xa kukho ioksijini. I-chemical reaction ingenziwa lula ngolu hlobo lulandelayo: 4Au + 8NaCN+O_{2}+2H_{2}O = 4Na[Au(CN)_{2}]+4NaOH

Kule mpendulo, igolide (Au) iphendula ngeSodium Cyanide kunye neoksijini ukuze yenze i-soluble gold-cyanide complex, i-sodium dicyanoaurate (Na[Au(CN)_{2}]). Le mpendulo ye-complexation ivumela igolide, ehlala ikhona kwimo encinci kakhulu okanye esasazekileyo kwi-ore, ukuba inyibilike kwisisombululo, ngaloo ndlela ivumela ukubuyiselwa kwayo emva koko.

Ukukhethwa kweGolide

Enye yeempawu eziphawulekayo zeSodium cyanide ekutsaleni igolide kukukhetha kwayo igolide. Nangona i-ore inokuba nezinye izinto kunye neeminerali ezahlukeneyo, i-sodium cyanide isabela kakhulu kwigolide phantsi kweemeko ezifanelekileyo. Olu khetho lubalulekile kuba luvumela ukutsalwa kwegolide ngaphandle kokuphazamiseka okukhulu kwezinye izinto kwi-ore, nto leyo enciphisa ubunzima kunye neendleko zamanyathelo okwahlulahlula nokucoca alandelayo.

Impembelelo kwiNdlela yokuSebenza kwemfumba

Inqanaba leLeaching

Ukusetyenziswa kwe-sodium cyanide kuchaphazela kakhulu izinga legolide. Ukuxinwa okufanelekileyo kwe-sodium cyanide kwisisombululo se-leaching kunokukhawulezisa ukuchithwa kwegolide. Ngokubanzi, ukonyusa i-sodium cyanide ngaphakathi koluhlu oluthile kunokunyusa izinga elenziwe ngalo igolide-cyanide complex. Nangona kunjalo, olu ayilulo unxibelelwano oluhambelanayo, kwaye ukugxila okuphezulu kakhulu kunokukhokelela kweminye imiba efana nokunyuka kweendleko ze-reagent kunye neengxaki ezinokubakho zokusingqongileyo.

Ireyithi yoBuyiselo lwegolide

Ubukho be-sodium cyanide buhambelana ngqo nezinga lokubuyisela igolide. Kwiinkqubo eziyilwe kakuhle nezisetyenziswayo kwimfumba yemfumba, ukusetyenziswa kwesodium cyanide kunokufikelela kumazinga aphezulu okubuyisela igolide, kaninzi kuluhlu lwama-60 - 90% nangaphezulu ngokuxhomekeke kubume bentsimbi ekrwada. Izinga eliphezulu lokubuya kwakhona lithetha ukusetyenziswa ngokufanelekileyo kobutyebi begolide kwintsimbi ekrwada, nto leyo ebaluleke kakhulu kwezoqoqosho kwimisebenzi yemigodi.

Ukuphucula ukusetyenziswa kweSodium Cyanide kwi-Heap Leaching

Ulawulo Loxinaniso

Ukumisela eyona ngxinaniso yesodium cyanide kwisisombululo se-leaching ngumba obalulekileyo wokuphucula imfumba. Oku kufuna ukuba kuqwalaselwe ngononophelo izinto ezifana nebakala lentsimbi ekrwada, imineralogy, kunye nobukho bezinye izinto ezinokutya icyanide. Umzekelo, iintsimbi ezikrwada eziqulethe amanqanaba aphezulu obhedu, i-zinc, okanye i-iron sulfides zinokufuna ukugxilwa okuphezulu kwe-cyanide ukuqinisekisa ukunyibilika okwaneleyo kwegolide, njengoko ezi zinyithi zinokusabela ngecyanide kwaye zikhuphisane negolide kwi-reagent.

Uhlengahlengiso lwe-pH

I-pH yesisombululo se-leaching nayo idlala indima ebalulekileyo ekusebenzeni kwe-sodium cyanide. Isodium cyanide izinzile kwaye iyasebenza kwindawo yealkaline. Ngokuqhelekileyo, i-pH yesisombululo se-leaching kwi-golden heap leaching igcinwa kuluhlu lwe-9 - 11. Ukulungelelanisa i-pH ayinako ukunyusa kuphela ukuzinza kwe-sodium cyanide kodwa kuchaphazela ukunyibilika kwezinye isinyithi - i-cyanide complexes, ngaloo ndlela iphucula ukukhethwa kwegolide.

Iingqwalasela zokusiNgqongileyo noKhuseleko

Ubuthi kunye neMpembelelo yokuSingqongileyo

Isodium cyanide yinto enetyhefu kakhulu. Kumxholo wokutyhutyha imfumba yegolide, amanyathelo angqongqo olawulo lokusingqongileyo ayimfuneko ukuze kuthintelwe ukukhululwa kwayo kokusingqongileyo. Ukuchitheka okanye ukulahlwa ngendlela engafanelekanga kwesodium cyanide - equlethe izisombululo kunokuba neziphumo ezibi kubomi basemanzini, umgangatho womhlaba, kunye nempilo yabantu. Umzekelo, ukuba i-sodium cyanide - i-leachate engcolisekileyo ivuza kwindawo yamanzi ekufutshane, inokubangela ukuba iintlanzi zibulale kwaye zingcolise imithombo yamanzi okusela.

ImiGaqo yoKhuseleko ekuPhatheni

Kwimisebenzi yezimayini, iiprothokholi eziqinileyo zokhuseleko kufuneka zilandelwe xa uphatha i-sodium cyanide. Abasebenzi ababandakanyekayo ekulungiseni, ekuthuthweni nasekusetyenzisweni kwezinyibiliko zesodium cyanide kufuneka babonelelwe ngezixhobo ezifanelekileyo zokuzikhusela, kuquka iiglavu, iimaski kunye nezibuko zokhuseleko. Izixhobo zokugcina i-sodium cyanide kufuneka ziyilelwe ukuthintela ukuvuza kunye nokuqinisekisa ukungena komoya okufanelekileyo ukuphepha ukuqokelelwa komphunga onetyhefu.

Ukuqukumbela, i-sodium cyanide yinto ebalulekileyo kwaye engenakubuyiselwa kwimfumba yegolide. Iimpawu zayo ezizodwa zeekhemikhali zivumela ukuchithwa okusebenzayo kunye nokutsalwa kwegolide kwi-ores yomgangatho ophantsi. Nangona kunjalo, ngeenzuzo zayo ezinkulu kuza nemingeni ebalulekileyo yokusingqongileyo kunye nokhuseleko ekufuneka ilawulwe ngononophelo ukuze kuqinisekiswe imisebenzi yokwembiwa kwegolide ezinzileyo nenoxanduva.