Iprojekthi yeCyanide yeSodium Heap Leaching yeNdawo yeGolide eOxidized eSenegal

Umgodi wegolide eSenegal ukumgangatho ophantsi intsimbi yegolide ene-oxidized kunye nebakala legolide le-2.49 g/t. Uphando lweLebhu lwenziwa kusetyenziswa i inkqubo yokukhutshwa kwemfumba. Iimpembelelo zeeparamitha zenkqubo ezifana nobungakanani besuntswana lentsimbi, iintlobo kunye needosi zeearhente zokuvuza, ixesha lokuvuza, kunye neentlobo kunye needosi zee-oxidants ezincedisayo ekutsalweni kwegolide ziye zaphandwa. Ezona meko zilungileyo zaye zamiselwa, kwafunyaniswa iqondo legolide leepesenti ezingama-89.57 kunye nebakala legolide kwintsalela ye-0.26%. Ezi ziphumo zibonelela ngesiseko sobugcisa obuthembekileyo kuphuhliso olunengqiqo nokusetyenziswa kwale ntsimbi.

1. Iipropati zentsimbi

Ibakala legolide lentsimbi ekrwada ekrwada yi-2.49 g/t, eyona nto inokufunyanwa kwakhona. Ibakala lesilivere yi-4.26 g/t, kunye nomxholo ophantsi. Icandelo eliphambili lokungcola kwi-ore yi-SiO₂, ilandelwa ngamanani amancinci e-Al kunye ne-Fe. Icandelo eliyingozi eliphambili li-arsenic, kunye ne-arsenic grade ye-0.68%. Amanqanaba ezinye izinto asezantsi noko. Iiminerali eziphambili zesinyithi kwi-ore yi-limonite, kwaye iiminerali zesulfide zinqabile kakhulu, ngakumbi ipyrite. Iiminerali ze-ganggue ubukhulu becala yiquartz, feldspar, kunye neeminerali zodongwe.

Lo mgodi wegolide yintsimbi ekrwada ene-oxid enemozulu eqinileyo enesakhiwo esixekileyo, ubukhulu becala ikwimo yamasuntswana aphukileyo kunye nomhlaba. Ukuchongwa kwePetrographic kubonisa ukuba ininzi yepyrite kwi-ore ikhona ngendlela yeenkozo ze-euhedral, ezifakwe kwi-quartz, i-feldspar, kunye ne-chlorite. Ubungakanani be-particle buhle, ngokubanzi ukusuka kwi-0.02 ukuya kwi-0.4 mm. I-Limonite ibonakala njenge-pseudomorph ye-pyrite okanye i-colloidal limonite eyenziwe yi-condensation yesisombululo se-ferric hydroxide exutywe kunye nenani elincinci leeminerali zodongwe ze-silicate, ezigcwalisa ukuqhekeka kwamaminerali e-ganggue. I-quartz ikhona ikakhulu njenge-metacolloidal chalcedony quartz, kunye neesayizi ezininzi zamasuntswana ukusuka kwi-0.02 ukuya kwi-0.15 mm. I-Feldspar ikwimo yeenkozo ezingaqhelekanga okanye i-aggregates, kunye ne-particle size ye-0.02 ukuya kwi-0.3 mm. Iiminerali zegolide ezikule ore zinobungakanani besuntswana elicikizekileyo, lelegolide ecolekileyo eyi-0.001 mm.

2. Iindlela zoVavanyo

I-ore ekrwada ekrwada igalelwe kwi-cylindrical barrel egcwele i-bedrock. Umlinganiselo we-liquid-solid walungiswa kwi-1.5: 1. Ikalika yongezwa ukulungelelanisa ixabiso le-pH ukuba libe likhulu kune-11. kunye nomlinganiselo othile we Isodium cyanide kongezwa. I-Leaching yayiqhutywa kwiqondo lobushushu begumbi ixesha elithile. Emva kovavanyo, i-pulp yathululelwa ukuhlukana okuqinileyo-ulwelo. Isiqulatho segolide kwintsalela yokutyhutyha kunye nokugxininiswa kwegolide kwisisombululo esinegolide kuhlalutywe, kwaye izinga legolide le-leaching labalwa.

3. Iziphumo zovavanyo kunye nohlalutyo

Ngokusekwe kwiimpawu zepropathi yentsimbi ekrwada, uthelekiso lwenziwe phakathi kwezicwangciso zovavanyo ezimbini: udaka olupheleleyo. ukukhutshwa kwe-cyanidation kunye nemfumba yokuvuza. Iimeko zovavanyo lwe-cyanidation yodaka olupheleleyo bezimi ngolu hlobo lulandelayo: ukucoleka kokusila kwe--0.074 mm 95%, umlinganiselo we-liquid-solid we-3:1. ukuvuselela oomatshini, kunye nexesha lokuvuza le-24 h. Iimeko zovavanyo lokuvuza kweemfumba zibe ngolu hlobo lulandelayo: ubungakanani besuntswana lentsimbi ekrwada -10 mm, umlinganiselo wolwelo-oluqilima we-1.5:1. kunye nexesha le-72 h.

Ngokusetyenziswa kwenkqubo yokuvuthuza kwemfumba, izinga lokuphuma kwegolide libe ngama-70.89%. Kusetyenziswa inkqubo yodaka olupheleleyo lwecyanidation, izinga lokuvuza kwegolide linyuswe kancinane ukuya kuma-74.05%. Kuthathelwa ingqalelo ixabiso lemveliso ngokubanzi, inkqubo yokukhutshwa kwemfumba yamkelwa kuvavanyo lokubuyisela igolide.

4. Izigqibo

(1) Intsimbi ekrwada yegolide yintsimbi ekrwada ene-oxid eyenziwe yimozulu, kunye nomgangatho wegolide we-2.49 g/t, ubukhulu becala igolide esulungekileyo eyi-0.001 mm. Intsimbi ekrwada ilungele unyango ngenkqubo ye-cyanidation leaching.

(2) Ngokusetyenziswa kovavanyo lwemeko yemfumba, eyona milinganiselo ilungileyo yokuvuza kwemfumba yamiselwa ngolu hlobo lulandelayo: ubungakanani bamasuntswana ore angama-20 mm, Isodium cyanide umthamo we-2.0 kg / t, i-calcium peroxide idosi ye-4.0 kg / t, kunye nexesha le-leaching leentsuku ze-10. Izalathiso zokwahlula eziphunyeziweyo ibe lizinga legolide eliphuma kwi-89.57% kunye nebakala legolide kwintsalela ye-0.26%.

Ekugqibeleni, umthengi wazibona iziphumo zethu zovavanyo. Emva kokunxibelelana nomthengi, iisampulu zathunyelwa, kwaye uthotho lweemvavanyo zokuxhamla lwenziwa. Ngohlalutyo lothelekiso, inkqubo yokuqukuqela efanelekele eyona meko ekugqibeleni iye yalungiselelwa le projekthi yokufundisa imfumba.

Ngoku, iprojekthi iqhubela phambili ngamandla. Kwiinyanga ezimbalwa, isityalo sokuvuza imfumba siya kugqitywa.

Iprojekthi yokucoca imfumba yegolide ekrwada e-oxid eSenegal idlale indima entle ekukhuthazeni uphuhliso lwemigodi yegolide eSenegal. Iyonke inkqubo yale projekthi, ukusuka kuphando lovavanyo lwe-beneficiation, uyilo lweyadi, ukufika kwezixhobo, ukufakwa kunye nokugunyaziswa, uqeqesho lwabasebenzi, ukuya ekusebenzeni kweplanti yokucoca imfumba, luxanduva United Chemical Ishishini kwaye ifikelele kwimigangatho yemveliso.

Ukufumana iingcebiso ezininzi zobuchwephesha? Qhagamshelana nathi!