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Ukuqonda iGold Leaching eNzulu neHlaziyiweyo eMzantsi Afrika: Izisombululo zeReagent eziPhambili zaseWitwatersrand naseBarberton

Khulisa i-Metallurgical Yieds nge-High-Purity AuCyan™ NaCN, i-AuCarb™ Activated Carbon enganyangekiyo, kunye ne-DWS-Compliant AuLeach™ GDA
UnitedChemical08-20-2026Mzantsi Afrika10

Ukuqonda iGold Leaching eNzulu neHlaziyiweyo eMzantsi Afrika: Izisombululo zeReagent eziPhambili

Ukuqonda i-Deep-Level & Refractory Gold Leaching eMzantsi Afrika: Izisombululo ze-Advanced Reagent zeWitwatersrand kunye neBarberton Africa golide milling iikhemikhali zokukhupha ii-reagents AuCyan™ Sodium Cyanide NaCN AuCarb™ Recovery Coconut Shell Activated Carbon AuLeach™ Agent GDA cyanide ababoneleli nge-refractory leaching Mponeng mine processing Deep CIL shell activated carbon Johannesburg Ubumsulwa obuphezulu 98.3% Durban I-arhente engekho yingozi SA elution electrowinning CIP process recovery from pyritic ores alternative DWS compliant hardness 99% adsorption kinetics Sibanye Stillwater No. 1 picture

UMzantsi Afrika umi njengesiqalo sembali yokwembiwa kwegolide kwimizi-mveliso yanamhlanje. Izindlu ezakhiwe ngendlela yejoloji efana ne ISidibi saseWitwatersrand—ikhaya lemisebenzi enzulu emhlabeni engaphantsi komhlaba efana neHarmony Gold's Umgodi waseMponeng, Kumbindi wezezimbiwa' Umgodi waseMzantsi Deepkunye noSibanye-Stillwater's Imisebenzi yaseDriefontein—kunye needipozithi ze-pyritic ezirhabaxa kakhulu Ibhanti yaseBarberton Greenstone (Imigodi yePan African Resources' Fairview kunye neSheba). Nangona kunjalo, ukukhupha igolide kwezi ngqaqa zinzulu kunye neematriki zezimbiwa ezintsonkothileyo kunika imingeni engakaze ibonwe ngaphambili kubaphathi bezityalo zanamhlanje kunye neengcali zesinyithi eziphambili.

Kwizityalo zanamhlanje zaseMzantsi Afrika ezisebenzisa isinyithi, ukusebenza kakuhle kusoloko kusongelwa yimiqobo emithathu ebalulekileyo. Okokuqala, iiMatrices ze-ore ezirhabaxa kakhulu nezine-pyritic: Iintsimbi ezithathwe kwi-deep Carbon Leader kunye neVentersdorp Contact Reefs (VCR) okanye kwiBarberton quartz-ICarbonImithambo yegazi ivalwe ngokuqinileyo kwi-pyrite kunye ne-arsenopyrite matrices. Ezi minerali ze-sulfide zidla ngamandla ii-free veins i-cyanide kunye neoksijini, nto leyo ecothisa kakhulu i-leaching kinetics kwaye inciphisa ukubuyiswa kwegolide iyonke. Okwesibini, Ukunqongophala Kwekhabhoni Okukhulu kunye Nokubiwa Kwangaphambi Kokukhulelwa: Izityalo zeCarbon-in-Pulp (CIP) ezinomthamo ophezulu kunye neCarbon-in-Leach (CIL) zisebenzisa izixhobo ezinkulu zoomatshini ezicheba kakhulu. Ikhabhoni esebenzayo Iqhekeka ngokukhawuleza ibe luthuli olucolekileyo phantsi kwala mandla aqatha okucheba, ithwala igolide exabisekileyo efakwe ngqo kwiTailings Storage Facilities (TSF). Ngaphezu koko, iileya ze-shale ze-carbonaceous zendalo kwi-ore "ziye zaqala" ukunyibilikisa igolide kwisisombululo. Okwesithathu, Ulawulo Olungqongqo Lwendalo Esingqongileyo (i-DWS kunye ne-NEMA): ISebe lezaManzi noCoceko laseMzantsi Afrika (i-DWS) kunye noMthetho woLawulo lweNdalo yeSizwe (i-NEMA) banyanzelisa imida ebekwe esweni ngokungqongqo kwi-cyanide yasimahla kunye nokukhutshwa kwesinyithi esinzima kumachibi angasecaleni ukuthintela ukuHanjiswa kweMigodi ye-Acid (i-AMD) kunye nongcoliseko lwamanzi angaphantsi komhlaba.

United Chemical ibonelela nge-matrix yeekhemikhali ebanzi, eqinisekisiweyo elungiselelwe ngokukodwa izityalo zegolide ezikumgangatho onzulu nezinganyangekiyo zaseMzantsi Afrika. Ngokudibanisa izinto ezinyibilikisayo ezicocekileyo kakhulu, ezihlala ixesha elide Iqokobhe leKhokhonathi Ngokusebenzisa ii-carbon, kunye nee-arhente zokukhupha inkunkuma ezinganobungozi kwindalo, sixhobisa abasebenzi basezimayini baseMzantsi Afrika ukuba bakwazi ukuphinda bafumane inkunkuma, basuse ukulahleka kwe-carbon, kwaye bagcine ukuthotyelwa ngokupheleleyo kokusingqongileyo.

I-Matrix yeKhemikhali elungiselelwe imisebenzi yeGolide yaseMzantsi Afrika

I-AuCyan™ Sodium Cyanide NaCN (≥98.3%)

Iintsimbi ezingaphantsi komhlaba ezinzulu ezivela eWitwatersrand kunye neentsimbi zeBarberton ezityebileyo kwi-sulfide zifuna i-lixiviant ecocekileyo kakhulu ukuze yoyise ii-sulfide zesinyithi ezisabelayo kwaye ifezekise ukunyibilika kwegolide ngokukhawuleza.

  • Ubumsulwa obungagungqiyo (≥98.3% NaCN):I-AuCyan™ inika ukufumaneka okuphezulu kwe-cyanide ion. Olu xinzelelo lwekhemikhali olusebenzayo luyoyisa iileya ze-sulfide passivation kwi-pyritic ores, lukhawulezisa amazinga okuphuma kwiitanki ze-atmospheric leach kunye neenkqubo ze-high-intensity elution.

  • Ukuthobela i-SANS 10228 epheleleyo / i-SANS 10231 Hazmat: Ithunyelwa ngqo ngeZibuko laseThekwini, i-AuCyan™ ipakishwe kwiidrama zentsimbi eziqinisekisiweyo ze-UN ezinee-liner eziqinisiweyo zangaphakathi, ezihlangabezana nayo yonke iMigangatho yeSizwe yaseMzantsi Afrika yokuphathwa kweempahla eziyingozi kunye nothutho lwangaphakathi ukuya kwiindawo zeemigodi zaseGauteng naseFree State.

I-AuCarb™ Gold Recovery Coconut Shell Activated Carbon (≥99% Ubulukhuni)

Izityalo ze-CIP zaseMzantsi Afrika ezinomthamo omkhulu ezifana ne-South Deep zifuna i-activated carbon enokumelana nokuchaphazeleka okuqhubekayo koomatshini ngelixa ibamba igolide ngamandla kwi-slurry enzima.

  • Ukumelana nokukrala okugqithisileyo (≥99% Ubulukhuni): Yenziwe ngamaqokobhe ekhokhonathi ase-Indonesia axineneyo kakhulu ngokusebenzisa ukuvuselelwa komphunga okukhethekileyo, I-AuCarb™ inamandla oomatshini angenakuthelekiswa nanto. Ithintela ukuveliswa kwe-carbon micro-fine kwi-agitators ezicheba kakhulu, igcina ii-ounces zegolide ekulahlekeni ziye kwiintsalela.

  • Ukufunxwa Okukhawulezileyo kunye nokuNciphisa Okungcono Kokukhulelwa: Yenzelwe ukuba ibe ne-micropore efanelekileyo kunye nokusasazwa kwe-mesopore, i-AuCarb™ ibonisa i-gold-cyanide complex adsorption kinetics ekhawulezayo [Au(CN)₂⁻], idlula izinto ze-carbonaceous shale matter zendalo ezikhoyo kwiingqaqa zaseMzantsi Afrika.

I-AuLeach™ Gold Leaching Agent (GDA) - Ayinabungozi

Njengoko iSebe lezaManzi noCoceko laseMzantsi Afrika liqinisa imida yokukhupha amanzi, i-AuLeach™ ibonelela ngenye indlela yokukhupha amanzi engena-cyanide nesebenza kakuhle kwimigodi yanamhlanje eqaphela i-ESG.

  • AyinaCyanide kwaye iyahambelana neDWS/NEMA: Ihlelwe njenge-arhente yeekhemikhali engeyongozi, I-AuLeach™ yenza lula kakhulu ulawulo lweTailings Storage Facility (TSF). Ithintela ukuqokelelwa kweekhemikhali ezinobungozi, inciphisa kakhulu iindleko zokukhupha ubuthi emzimbeni kwaye yenza kube lula ukuhlaziya iilayisenisi zamanzi.

  • Ukulungiswa kwezityalo okungenamthungo kunye nokuThuthwa okuKhawulezayo: I-AuLeach™ yindawo yokungenisa ngqo ye-NaCN. Isebenza kakuhle kwiitanki ze-CIL/CIP ezikhoyo nakwiisekethe ze-elution ngaphandle kokuphuculwa kwemali. Ngaphezu koko, njengempahla engenabungozi, idlula imiqathango yokuthutha i-hazmat evela kwi-Durban Port.

Uthutho olungenamthungo: Izibuko laseThekwini ukuya eGoldfields eMzantsi Afrika

Ubonelelo olungenaziphazamiso luyigazi lobomi kwimigodi emikhulu engaphantsi komhlaba eMzantsi Afrika. United Chemical iseke uthotho lwempahla oluyi-ironclad olulungiselelwe amaziko emigodi yasekhaya eMzantsi Afrika.

  • Ukulungiswa kweePort Port zaseDurban kunye nokuSuswa kweRhafu ngokukhawuleza: Sigcina imigca yokuthumela iikhonteyina eziphambili kwiZibuko laseDurban, sixhaswa ngamaxwebhu eerhafu acwangcisiweyo kwiNaCN enobungozi yeKlasi 6.1 kunye nee-reagents zekhabhoni yemizi-mveliso ngokubanzi kunye ne-GDA.

  • Uthutho lweeNqwelo-mafutha oluya ngqo kwiindawo zeShaft: Ukusuka eDurban, amaqabane ethu anelayisenisi yothutho lwezithuthi ajongene nothutho olukhawulezayo lweendlela noololiwe oluya ngqo kwiindawo zokugcina iimpahla zemigodi eCity Deep (eGoli), eWelkom (eFree State), eKlerksdorp (eMntla Ntshona), naseBarberton (eMpumalanga).

Vavanya iiReagents zethu kwiOre yakho yaseMzantsi Afrika

Phakamisa amazinga okubuyiselwa kwezityalo zakho kwaye unciphise ukusetyenziswa kwee-reagent. Abaphathi beZityalo, iiNjineli zeMetallurgical, kunye naBaphathi beeLabhoratri kulo lonke elaseMzantsi Afrika bayamenywa ukuba bacele iisampulu zasimahla ze-AuCyan™, AuCarb™, okanye i-AuLeach™ ukuze kuvavanywe ukuqengqeleka kwebhotile kunye nokufunxwa kwayo.

Cela iisampuli zasimahla zeLebhu ngoku

Ukuqonda i-Deep-Level & Refractory Gold Leaching eMzantsi Afrika: Izisombululo ze-Advanced Reagent zeWitwatersrand kunye neBarberton Africa golide milling iikhemikhali zokukhupha ii-reagents AuCyan™ Sodium Cyanide NaCN AuCarb™ Recovery Coconut Shell Activated Carbon AuLeach™ Agent GDA cyanide ababoneleli nge-refractory leaching Mponeng mine processing Deep CIL shell activated carbon Johannesburg Ubumsulwa obuphezulu 98.3% Durban I-arhente engekho yingozi SA elution electrowinning CIP process recovery from pyritic ores alternative DWS compliant hardness 99% adsorption kinetics Sibanye Stillwater No. 2 picture

Imibuzo Ebuzwa Rhoqo: Ukucutshungulwa kweGolide eMzantsi Afrika

1. I-AuCyan™ iphucula njani ukutsalwa kwegolide kwi-pyritic ores kwiBarberton Greenstone Belt?

Ii-ore eBarberton (ezifana neFairview kunye neSheba) zinamandla kakhulu e-pyritic kunye ne-arsenopyritic. I-cyanide ekumgangatho ophantsi iyasokola ukugqobhoza i-sulfide matrix encapsulation. I-AuCyan™ (ubumsulwa obuyi-≥98.3%) Iqinisekisa uxinano olukhulu lwee-CN⁻ ions zasimahla, igcina amandla okuqhuba okunyibilikisa i-oxidation kunye nokwandisa ukubuyiswa kwe-kinetic kwi-pressure oxidation (POX) okanye kwi-CIL tail-leach circuits.

2. Kutheni ukuba lukhuni kwekhabhoni kubalulekile kwizityalo ezinkulu zeCIP kwiindawo zegolide zaseFree State eMzantsi Afrika?

Izityalo zeCIL/CIP zaseFree State zicubungula amawaka eetoni zesinyithi imihla ngemihla zisebenzisa ii-impellers ezinamandla aphezulu. I-carbon esebenzayo ethambileyo inengxaki yokukhubeka kakhulu koomatshini, ijika ibe luthuli lwe-carbon oluphuma kwizikrini zokhuseleko lungene emachibini angasemva. I-AuCarb™ Ikhabhoni Esebenzayo inika ubulukhuni obuyi-≥99%, ithintela ukuqhekeka kwekhabhoni kwaye iqinisekisa isivuno segolide.

3. I-AuLeach™ inceda njani imigodi yaseMzantsi Afrika ngokuhambelana nemithetho yeSebe lezaManzi noCoceko (DWS)?

I-DWS yaseMzantsi Afrika inyanzelisa imida engqongqo kumanqanaba e-cyanide emanzini asezimbiweni zemigodi ukukhusela iindawo zamanzi ezijikelezileyo kunye namanzi angaphantsi komhlaba. I-AuLeach™ GDA ayinayo i-cyanide kwaye ayinabungozi kokusingqongileyo, nto leyo evumela imigodi ukuba inciphise kakhulu iindleko zonyango lweentsalela kwaye ilandele imigaqo yamanzi ye-NEMA ngokulula.

4. Ngaba i-AuCarb™ ingayoyisa i-shale carbon ebangela ukubiwa kwangaphambili kwiWitwatersrand Carbon Leader Reefs?

Ewe. Iintsimbi ezine-carbonaceous shale (izinto ezisusa igolide) zinokuphinda zifunxe igolide enyibilikisiweyo ngaphambi kwexesha. I-AuCarb™ ine-kinetics ye-adsorption ekhawulezayo kakhulu kunye nesakhiwo se-pore esiphezulu, esivumela ukuba ifunxe i-gold-cyanide complexes ngokukhawuleza nangokuqinileyo kune-natural preg-robbing organic matter kwi-slurry.

5. Ithini imigangatho yothutho lwezothutho xa kuthunyelwa i-AuCyan™ ukusuka eDurban Port ukuya kwimigodi yaseGauteng?

Zonke izinto ezithunyelweyo I-AuCyan™ (Iimpahla eziyingozi zeKlasi 6.1) thobela ngokungqongqo imigangatho ye-SANS 10228 kunye ne-SANS 10231. Ii-reagents zipakishwa kwiidrama zentsimbi ze-UN eziqinileyo, ezivaliweyo kwaye zithuthwa ngezithuthi zothutho ezineelayisenisi ze-hazmat ngqo ukusuka eDurban Port ukuya kwiindawo zokugcina imigodi eGoli, eCarletonville, naseWelkom.

6. Ngaba i-AuLeach™ iyahambelana neesekethe ezikhoyo zaseMzantsi Afrika zokufumana ulwazi kunye nokuphumelela nge-electrowinning?

Ngokuqinisekileyo. I-AuLeach™ GDA ayifuni kuguqulwa nto. Yenza ii-complex zegolide ezizinzileyo ezifunxa ngokufanelekileyo kwi Iqokobhe leCoconut eSebenzisiweyo Ikhabhoni kwaye ziphume kakuhle kwizityalo eziqhelekileyo ze-Anglo American okanye ze-Zadra elution kunye ne-electrowinning (EW).

7. Isebenza njani i-AuCyan™ kwi-high-intensity leach reactors (HLR) njengeenkqubo ze-Acacia?

Ii-reactors ezisebenzisa amandla aphezulu ekucubunguleni igolide yomxhuzulane zifuna ii-reagents ezicocekileyo kakhulu. I-AuCyan™ (≥98.3%) inyibilika ngokukhawuleza nangokupheleleyo, iqinisekisa ukuba phantse i-99% yeengqukuva zegolide ezirhabaxa nezicoliweyo kwimijikelo ye-batch reactor leach kwiiyure ezimbalwa.

8. Kutheni izityalo zegolide zaseMzantsi Afrika kufuneka zikhethe ikhabhoni yeqokobhe lekhokhonathi lase-Indonesia kunekhabhoni yamalahle yasekuhlaleni?

Nangona iikhabhoni ezisekelwe kumalahle ziveliswa apha ekhaya, ikhabhoni evuselelweyo yeqokobhe lekhokhonathi inika indawo ephezulu kakhulu yomphezulu we-micro-pore kunye nobunzima obuphezulu kakhulu boomatshini (≥99%). I-AuCarb™ Coconut Carbon inika amandla aphezulu okulayisha igolide (ixabiso le-K) kwaye inika amazinga aphantsi kakhulu okuncitshiswa xa kuthelekiswa nekhabhoni yamalahle.

9. Lingakanani ixesha eliqhelekileyo lokuhambisa izikhongozeli zeekhemikhali ezivela eDurban Port ukuya kwiindawo zemigodi?

Nje ukuba iinqanawa zaselwandle zifike eDurban Port, imigaqo yethu yerhafu elungisiweyo kwangaphambili ivumela ukuthunyelwa kweekhonteyina kwiintsuku ezi-3 ukuya kwezi-5 zomsebenzi. Uthutho oluya eGauteng, eFree State, okanye eBarberton luthatha iiyure ezingama-24 ukuya kuma-48 ezongezelelweyo, ukuqinisekisa ulawulo oluqikelelweyo lwezinto ezisetyenzisiweyo.

10. Iingcali zezityalo zaseMzantsi Afrika zingacela njani iisampulu zasimahla zovavanyo lwebhotile elebhu?

Iingcali zeMetallurgists kunye nabaphathi beLebhu eMzantsi Afrika banokucela Iisampuli zovavanyo zasimahla ye-AuCyan™, i-AuCarb™, okanye i-AuLeach™ ngefomu yethu yoqhagamshelwano kwiwebhusayithi. Sithumela iikhithi zesampulu ngqo kwilabhoratri yesiza sakho ukuze kuhlolwe i-CIL bottle-roll kunye ne-kinetic adsorption.

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