Iimpembelelo zeSodium Cyanide Leaching Time kwireyithi yokuBuyisa

intshayelelo

I-Cyanide leaching yindlela esetyenziswa kakhulu yokukhupha igolide kwintsimbi ekrwada yegolide. Phakathi kwezinto ezahlukeneyo ezinefuthe kwi ukukhutshwa kwecyanide inkqubo, i ixesha lokuphumla of sodium cyanide idlala indima ebalulekileyo ekumiseleni izinga lokubuyiselwa kwegolide. Ukuqonda ubudlelwane phakathi kwabo kubalulekile ekuphuculeni i i-cyanide ukusebenza kwe-leaching kunye nokuphucula ukusebenza kakuhle kwezoqoqosho kwimveliso yegolide.

Inkqubo yeCyanide Leaching

Kwinkqubo ye-cyanide leaching, igolide kwi-ore isabela nayo Isodium cyanide phambi kweoksijini ukwenza i-cyanide yegolide enyibilikayo. Ukusabela kweekhemikhali kunokubonakaliswa ngokulula njenge: 4Au + 8NaCN + O₂ + 2H₂O = 4Na[Au(CN)₂] + 4NaOH. Oku kusabela kwenzeka kumphezulu wamasuntswana egolide, kwaye isantya kunye nobungakanani bokusabela kuchatshazelwa zizinto ezininzi, kunye nexesha lokuvuza lelinye lawona abalulekileyo.

Ixesha leLeaching lichaphazela njani ireyithi yokuBuyisa

Inqanaba lokuqala

Ekuqaleni kwenkqubo yokucoca, njengoko ixesha liqhubeka, inani legolide elichithwe kwisisombululo landa ngokukhawuleza. Amasuntswana egolide kumphezulu we ore ahlaselwa ngokukhawuleza yi ion cyanide. Umphezulu omtsha wegolide ubonelela ngenani elikhulu leendawo zokusabela, kwaye i-gradient yoxinaniso phakathi komphezulu wamasuntswana egolide kunye nesisombululo sikhuthaza ukunyibilika okuqhubekayo kwegolide. Ngeli xesha, izinga lokuvuza kwegolide libonisa ukunyuka okunyukayo, kwaye izinga lokubuyisela liyenyuka kakhulu ngokwandiswa kwexesha le-leaching.

Inqanaba eliphakathi

Njengoko i-leaching iqhubeka, igolide kumphezulu ongaphandle we-ore iyancibilika ngokuthe ngcembe, kwaye amasuntswana egolide aseleyo angaba nzulu ngaphakathi kwamasuntswana ore okanye abe nemeko entsonkothileyo yokuzinzisa. Ngeli xesha, izinga le-leaching liqala ukucotha. Nangona isabeleko isaqhuba, ukusasazwa kweeyoni zecyanide kumphezulu wamasuntswana egolide kuba nzima ngakumbi ngenxa yokwenziwa kwesisombululo esigcweleyo esijikeleze amasuntswana kunye nokuphazamiseka kwezinye iimveliso zokusabela. Nangona kunjalo, izinga lokubuyisela lisanyuka, kodwa ngesantya esincinci xa kuthelekiswa nesigaba sokuqala.

Emva kwenqanaba

Emva kwexesha elithile elide, izinga lokuvuza kwegolide lisondela kwixabiso elingaguqukiyo. Uninzi lwegolide olufikeleleka lula luye lwanyibilika, kwaye igolide eseleyo mhlawumbi ikwimeko ecolekileyo kakhulu, isongelwe ngokuqinileyo ngamanye amaminerali, okanye ikhona kwimo ekunzima ukusabela ngayo ngecyanide. Ukwandisa ixesha lokuhlamba kweli nqanaba kunempembelelo encinci ekunyuseni izinga lokubuyisela. Ngapha koko, ukuqhubeka nokwandisa ixesha le-leaching kunokubangela iziphumo ezibi, ezinje ngokwandisa ukusetyenziswa kwe Isodium cyanide, ukusetyenziswa kwamandla okusebenza kwezixhobo, kunye neengozi ezinokubakho zokungcoliseka kwendalo ngenxa yokuvezwa ixesha elide kwezisombululo ezinecyanide.

case Studies

Ityala loku-1: Umgodi weGolide eShandong, eChina

Kumgodi wegolide eShandong, abaphandi baqhube uthotho lweemvavanyo malunga ne-cyanide leaching. Baye bafumanisa ukuba xa ixesha le-leaching liyi-12 iiyure, izinga lokubuyisela igolide lalingama-60 kuphela ekhulwini. Njengoko ixesha lokufundisa landiswa ukuya kwiiyure ezingama-24, izinga lokubuyisela liye landa ukuya kuma-80%. Nangona kunjalo, xa ixesha lokufundisa landiswa ngakumbi ukuya kwiiyure ezingama-36, izinga lokubuyisela liye landa kancinci ukuya kuma-82%. Oku kubonisa ukuba phakathi koluhlu oluthile, ukwandisa ixesha le-leaching kunokuphucula ngokufanelekileyo izinga lokubuyisela, kodwa emva kokufikelela kwinqanaba elithile, umphumo wecala lokunyusa izinga lokubuyisela ngokunyusa ixesha lokuhlamba liba yinto engafanelekanga.

Ityala lesi-2: Umgodi weGolide wase-Australia

Kumgodi wegolide waseOstreliya, iimeko ezahlukeneyo zexesha lokuvuza zazisetelwe iibhetshi ezahlukeneyo zentsimbi ekrwada. Kwi-ore enesakhiwo esilula, xa ixesha le-leaching liyi-18 iiyure, izinga lokubuyisela i-85% lifunyenwe. Kodwa kwintsimbi ekrwada enokwakheka okuntsonkothileyo okuqulathe ukungcola okungakumbi, nasemva kweeyure ezingama-36 zokutyhutyha, izinga lokubuyisela lafikelela kuphela kuma-75%. Oku kubonisa ukuba impembelelo yexesha le-leaching kwireyithi yokubuyisela kwakhona inxulumene nobume be-ore. Ii-ores ezineengoma ezintsonkothileyo zinokufuna amaxesha amade okukhupha ukuze kuphunyezwe amaxabiso okubuyisela awonelisayo, kodwa kukho umda.

UkuPhuculwa kweXesha leLeaching

Ukwandisa ixesha lokufundisa, iinkalo ezininzi kufuneka ziqwalaselwe ngokubanzi. Okokuqala, kuyimfuneko ukwenza uhlalutyo oluneenkcukacha lwemineralojiki yentsimbi ekrwada ukuze kuqondwe ubume begolide, obufana nobungakanani besuntswana legolide, iqondo lokuzinzisa, kunye nomxholo wezimbiwa ezinxulumeneyo. Ngokusekelwe koku, ixesha elifanelekileyo lokuqala lokufundisa linokuqikelelwa. Okwesibini, ngexesha lenkqubo ye-leaching, ukujonga ixesha lokwenene lokuxinana kwegolide kwisisombululo se-leaching kunye nomxholo oseleyo wegolide kwi-ore unokwenziwa ngesampuli kunye nohlalutyo. Ngokwendlela yokutshintsha kwezi datha, ixesha le-leaching lingalungiswa ngexesha elifanelekileyo. Okwesithathu, ngokudibanisa nezinye izinto ezichaphazela inkqubo ye-leaching, ezifana ne-concentration ye-sodium cyanide, ixabiso le-pH lesisombululo, kunye nobushushu, isicwangciso esibanzi sokuphucula sinokuqulunqwa ukuze kufezekiswe ibhalansi engcono phakathi kwezinga lokubuyisela kunye neendleko zokuvelisa.

isiphelo

Ixesha le-leaching ye-sodium cyanide inempembelelo ebalulekileyo kwizinga lokubuyisela igolide kwinkqubo ye-cyanide leaching. Kwiinqanaba zokuqala kunye neziphakathi zokuvuza, ukwandisa ixesha lokuhlamba kunokunyusa ngokufanelekileyo izinga lokubuyisela. Nangona kunjalo, emva kokufikelela kwinqanaba elithile, ukwandisa ngakumbi ixesha lokufundisa kunempembelelo encinane ekuphuculeni izinga lokubuyisela kwaye kunokuzisa iimpembelelo ezimbi. Iindidi ezahlukeneyo zee-ore zinamaxesha awohlukeneyo alungileyo okuvuza, ekufuneka amiselwe ngokuqwalaselwa okubanzi kweemeko ezahlukeneyo kunye nemifuniselo yokwenyani. Ngokwandisa ixesha lokucoca, ukusebenza kakuhle kwegolide cyanide leaching kungaphuculwa, kwaye izibonelelo ezingcono zoqoqosho kunye nokusingqongileyo zinokufezekiswa kwishishini lemigodi yegolide.