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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 Afrika420

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 ezidumileyo zejoloji ezifana neWitwatersrand Basin —ikhaya lemisebenzi enzulu kakhulu emhlabeni efana noMgodi waseMponeng weHarmony Gold , uMgodi oMkhulu weGolide weSouth Fields, kunye nemisebenzi yaseDriefontein yeSibanye-Stillwater —kunye neendawo ezirhabaxa kakhulu zeBarberton Greenstone Belt (iMigodi yeFairview neSheba yePan African Resources). Nangona kunjalo, ukukhupha igolide kwezi ngxondorha 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 zeOre eziRefractory & Pyritic: IiOre ezikhutshwe kwi-deep Carbon Leader kunye neVentersdorp Contact Reefs (VCR) okanye iBarberton quartz- Carbon ate veins zifakwe ngokuqinileyo kwi-pyrite kunye ne-arsenopyrite matrices. Ezi minerals ze-sulfide zidla ngamandla i-cyanide kunye ne-oxygen ekhululekileyo, zicothisa kakhulu i-leaching kinetics kwaye zinciphisa ukubuyiswa kwegolide iyonke. Okwesibini, iSevere Carbon Attrition & Preg-Robbing: Izityalo zeCarbon-in-Pulp (CIP) kunye neCarbon-in-Leach (CIL) ezinomthamo ophezulu zisebenzisa ii-agitators ezinkulu, ezine-shear mechanical. I-Soft Activated Carbon yaphuka ngokukhawuleza ibe luthuli olucolekileyo phantsi kwala mandla aqinileyo okucheba, ithwala igolide exabisekileyo efakwe ngqo kwiTailings Storage Facilities (TSF). Ngaphezu koko, iileya ze-shale ze-carbonaceous zendalo kwi-ore "zipreg-rob" zinyibilikisa igolide kwisisombululo. Okwesithathu, Ulawulo Olungqongqo Lwendalo Esingqongileyo (i-DWS kunye ne-NEMA): ISebe laManzi noCoceko laseMzantsi Afrika (i-DWS) kunye noMthetho woLawulo lweNdalo yeSizwe (i-NEMA) banyanzelisa imida ebekwe esweni ngokungqongqo kwi-cyanide yamahhala 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.

  • Ukucoceka Okungagungqiyo (≥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.

  • I-SANS 10228 epheleleyo / I-SANS 10231 Hazmat Compliance: Ithunyelwa ngqo ngeZibuko laseThekwini, i-AuCyan™ ipakishwe kwiidrama zentsimbi eziqinisekisiweyo ze-UN ezinee-liner zangaphakathi eziqinisiweyo, ezihlangabezana nayo yonke iMigangatho yeSizwe yaseMzantsi Afrika yokuphathwa kweempahla eziyingozi kunye nothutho oluya ngaphakathi elizweni 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 Nokurhawuzelelwa Okugqithisileyo (≥99% Ukuqina): Yenziwe ngamaqokobhe ekhokhonathi ase-Indonesia axineneyo ngokusebenzisa ukuvuselelwa komphunga okukhethekileyo, i-AuCarb™ inamandla oomatshini angenakuthelekiswa nanto. Ithintela ukuveliswa kwe-carbon micro-fine kwi-agitators ezishear ephezulu, igcina ii-ounces zegolide ekulahlekeni ziye kwi-tailings.

  • Ukufunxa Okukhawulezileyo kunye nokuCima Okugqwesileyo kwePreg-Robbing: Yenzelwe ukusasazwa kwe-micropore efanelekileyo kunye ne-mesopore, i-AuCarb™ ibonisa i-kinetics ye-adsorption ekhawulezayo ye-gold-cyanide complex [Au(CN)₂⁻], ikhuphisana ne-carbonaceous shale matter yendalo ekhoyo 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 ihambelana neDWS/NEMA: Ihlelwe njengearhente yamachiza engenabungozi, i-AuLeach™ yenza kube lula kakhulu ukulawula iTailings Storage Facility (TSF). Ithintela ukuqokelelwa kweekhemikhali ezinobungozi, inciphisa kakhulu iindleko zokukhupha ubuthi kwaye yenza kube lula ukuhlaziya iilayisenisi zamanzi.

  • Ukulungiswa kweZityalo eziNgenamthungo kunye nokuThuthwa okuKhawulezayo: I-AuLeach™ yindawo yokungenisa ngqo i-NaCN. Isebenza ngokungenamthungo kwiitanki ze-CIL/CIP ezikhoyo kunye neesekethe ze-elution ngaphandle kokuphuculwa kwemali. Ngaphezu koko, njengempahla engenabungozi, idlula imiqathango yokuthutha i-hazmat evela kwiZibuko laseDurban.

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 kweeNqwelo zeZibuko zaseDurban kunye nokuSuswa kweeNqwelo zeSistim ngokukhawuleza: Sigcina imigca yokuthumela iikhonteyina eziphambili kwiZibuko laseDurban, sixhaswa ngamaxwebhu eeNqwelo zeSistim alungelelanisiweyo kwiNaCN enobungozi yeKlasi 6.1 kunye nee-reagents zekhabhoni yezimboni ngokubanzi kunye ne-GDA.

  • Uthutho lweenqwelo-mafutha oluQokelelweyo ukuya kwiindawo zeShaft: Ukusuka eDurban, amaqabane ethu eenqwelo-mafutha anelayisenisi ajongene nothutho olukhawulezayo lweendlela noololiwe oluya ngqo kwiindawo zokugcina iimpahla eCity Deep (eJohannesburg), 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™ (≥98.3% ubumsulwa) iqinisekisa ukuxinana okuphezulu kwee-ion ze-CN⁻ zasimahla, igcina amandla okuqhuba e-oxidation-dissolution aqinileyo kwaye iphucula 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 mihla le 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™ Activated Carbon inika ubunzima obuyi-≥99%, ithintela ukuqhekeka kwe-carbon 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, ivumela imigodi ukuba inciphise kakhulu iindleko zonyango lweezimbiweni 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 i-preg) zinokuphinda zifunxe igolide enyibilikisiweyo ngaphambi kwexesha. I-AuCarb™ ine-kinetics ye-adsorption ekhawulezayo kunye nesakhiwo se-pore esiphezulu, esivumela ukuba ifunxe i-gold-cyanide complexes ngokukhawuleza nangokuqinileyo kunezinto eziphilayo ezisusa i-preg kwi-slurry.

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

Zonke iimpahla ezithunyelwayo ze -AuCyan™ (iimpahla eziyingozi zeKlasi 6.1) zihambelana ngokungqongqo nemigangatho 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 impahla zemigodi eGoli, eCarletonville, naseWelkom.

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

Ngokuqinisekileyo. I-AuLeach™ GDA ayifuni kutshintshwa kwemali. Yenza ii-complex zegolide ezizinzileyo ezifunxa ngokufanelekileyo kwiCoconut Shell Activated Carbon 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%) iyanyibilika ngokukhawuleza nangokupheleleyo, iqinisekisa ukuba phantse i-99% yokunyibilika kwamasuntswana egolide aqinileyo nacolekileyo 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 esebenzayo 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 iphantsi kakhulu amazinga okutsalwa 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 iisampulu zovavanyo zasimahla ze-AuCyan™, AuCarb™, okanye i-AuLeach™ ngefomu yethu yoqhagamshelwano kwiwebhusayithi. Sithumela iikhithi zesampulu ngqo kwilebhu yesiza sakho ukuze kuhlolwe uvavanyo lwe-CIL bottle-roll kunye ne-kinetic adsorption.

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