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Ho Tseba ho Hlahisa Khauta ka Botebo le ka ho Kganya Afrika Borwa: Ditharollo tse Tswetseng Pele tsa Reagent bakeng sa Witwatersrand le Barberton

Eketsa Tlhahiso ea Metallurgical ka High-Purity AuCyan™ NaCN, AuCarb™ Activated Carbon e Hanelang Attrition, le DWS-Compliant AuLeach™ GDA
UnitedChemical08-20-2026South Africa420

Ho Tseba ho Hlahisa Khauta ka Botebo le ka ho Refractory Afrika Boroa: Litharollo tse Tsoetseng Pele tsa Reagent

Ho Tseba ho Hlakola Khauta ka Botebo le ka ho Refractory Afrika Borwa: Litharollo tse Tsoetseng Pele tsa Reagent bakeng sa Witwatersrand le Barberton Africa merafo ya kgauta dikhemikhale tsa ho ntsha di-reagent AuCyan™ Sodium Cyanide NaCN AuCarb™ Pholoso ya Shell ya Kokonate e Kentsweng Khaboneng AuLeach™ Moemedi wa GDA bafepedi ba refractory leaching merafong ya Mponeng Ts'ebetso ya khetla ya Deep CIL e kentsweng khaboneng Johannesburg Bohloeki bo hodimo 98.3% Durban Moemedi ya seng kotsi SA elution electrowinning CIP process recovery from pyritic ores alternative DWS compliance hardness 99% adsorption kinetics Sibanye Stillwater No. 1 picture

Afrika Borwa e eme e le setsi sa nalane sa merafo ya kgauta ya diindasteri tsa sejwalejwale. Matlo a nang le dibopeho tse ikgethang tsa jeoloji tse kang Witwatersrand Basin — lehae la mesebetsi e tebileng ka ho fetisisa lefatsheng ka tlase ho lefatshe jwalo ka Morafo wa Mponeng wa Harmony Gold, Morafo o tebileng wa South Fields wa Gold Fields , le mesebetsi ya Sibanye-Stillwater ya Driefontein — hammoho le di-depositi tsa pyritic tse nang le kganya e kgolo tsa Barberton Greenstone Belt (merafo ya Fairview le Sheba ya Pan African Resources). Leha ho le jwalo, ho ntsha kgauta mafikeng ana a tebileng le diminerale tse rarahaneng ho hlahisa diphephetso tse e-so ka di etswa tsa metallurgical ho batsamaisi ba dimela ba sejwalejwale le ditsebi tse ka sehloohong tsa metallurgical.

Limeleng tsa tšepe tsa Afrika Boroa tsa sejoale-joale, katleho ea ts'ebetso e lula e sokeloa ke litšitiso tse tharo tsa bohlokoa. Ea pele, Materese a Ore a Refractory le Pyritic: Materese a nkiloeng ho Leader ea Carbon e tebileng le Ventersdorp Contact Reefs (VCR) kapa Barberton quartz- Carbon ate veins a koetsoe ka thata ka har'a matrices ea pyrite le arsenopyrite. Liminerale tsena tsa sulfide li ja cyanide le oksijene e lokolohileng ka matla, li liehisa kinetics ea leaching haholo le ho fokotsa ho hlaphoheloa ha khauta ka kakaretso. Ea bobeli, Ho Khaoha ha Khabone ka Matla le ho Roba Pele: Limela tsa Carbon-in-Pulp (CIP) le Carbon-in-Leach (CIL) tse nang le matla a phahameng li sebelisa li-agitator tse kholo, tse nang le shear e phahameng. Carbon e Soft Activated e robeha kapele hore e be lerōle le lesesaane tlas'a matla ana a matla a ho roba, e jara khauta ea bohlokoa e monyang ka ho toba ho Tailings Storage Facilities (TSF). Ho feta moo, likarolo tsa tlhaho tsa shale tsa carbonaceous oreng li "preg-rob" ka mafolofolo li qhibilihisa khauta ho tsoa tharollong. Sa boraro, Tlhokomelo e Matla ea Tikoloho (DWS & NEMA): Lefapha la Metsi le Tsamaiso ea Likhoerekhoere la Afrika Boroa (DWS) le Molao oa Naha oa Tsamaiso ea Tikoloho (NEMA) li tiisa meeli e behiloeng leihlo ka thata holim'a cyanide e lokolohileng le ho ntšoa ha tšepe e boima matamong a mesaletsa ho thibela ho qhalana ha metsi a ka tlas'a lefatše a nang le asiti (AMD) le tšilafalo ea metsi a ka tlas'a lefatše.

United Chemical e fana ka matrix e felletseng, e pakiloeng tšimong ea lik'hemik'hale e etselitsoeng ka ho khetheha limela tsa khauta tse tebileng le tse hanyetsang tsa Afrika Boroa. Ka ho kopanya li-lixiviants tse hloekileng haholo, tse tšoarellang nako e telele Khetla ea kokonate Ka lebaka la khabone, le disebediswa tse seng kotsi tsa ho ntsha metsi tse sireletsang tikoloho, re matlafatsa basebetsi ba merafong ba Afrika Borwa ho eketsa pholiso, ho fedisa tahlehelo ya khabone, le ho boloka ho latela melao yohle ya tikoloho.

Matrix ea Lik'hemik'hale e Loketsoeng bakeng sa Ts'ebetso ea Khauta ea Afrika Boroa

AuCyan™ Sodium Cyanide NaCN (≥98.3%)

Maru a tebileng a ka tlas'a lefatše a tsoang Witwatersrand le maru a Barberton a nang le sulfide a mangata a hloka motsoako o hloekileng haholo ho feta sulfide ea tšepe e arabelang le ho fihlela ho qhibiliha ha khauta ka potlako.

  • Bohloeki bo sa Fetoheng (≥98.3% NaCN): AuCyan™ e fana ka boteng bo phahameng ka ho fetisisa ba cyanide ion e sa lefelloeng. Khakanyo ena e phahameng ea lik'hemik'hale e sebetsang e hlola mekhahlelo ea sulfide passivation holim'a li-ore tsa pyritic, e potlakisa sekhahla sa ho ntša metsi litankeng tsa leach tsa sepakapaka le litsamaisong tsa elution tse matla haholo.

  • Ho Latela Melao ya Hazmat ka botlalo ya SANS 10228 / SANS 10231: E romelwa ka ho toba ka Koung ya Durban, AuCyan™ e pakilwe ka meropa ya tshepe e nang le setifikeiti sa UN e boima e nang le di-liner tse matlafaditsweng tsa kahare, e fihlella Maemo ohle a Naha a Afrika Borwa bakeng sa ho sebetsana le thepa e kotsi le dipalangwang tse kenang ka hare ho naha ho ya dibakeng tsa merafo ya Gauteng le Free State.

Khabone e Sebedisitsweng ya Khetla ya Kokonate ya AuCarb™ Gold Recovery (Bothata ba ≥99%)

Difeme tsa CIP tsa Afrika Borwa tse nang le bongata bo boholo jwalo ka South Deep di hloka khabone e kentsweng tshebetsong e ka hanelang tshusumetso e tswelang pele ya mechini ha ka nako e ts'oanang di hapa kgauta ka matla ho tswa ho ditshila tse rarahaneng.

  • Ho Hanela ho Hlweka ho Feteletseng (≥99% Ho Tiea): E entsoe ka likhetla tsa kokonate tsa Indonesia tse teteaneng haholo ka ts'ebetso e khethehileng ea mouoane, AuCarb™ e na le matla a sa bapisoang a mechini. E thibela tlhahiso ea carbon micro-fine ka har'a li-agitator tse nang le shear e ngata, e boloka li-ounces tsa khauta hore li se ke tsa lahleha ho ea ho li-tailings.

  • Ho Monya ka Potlako le ho Thibela Pele ho Tloha: E entsoe ka micropore e ntle ka ho fetisisa le kabo ea mesopore, AuCarb™ e bonts'a kinetics ea ho monya ka potlako ea gold-cyanide complex adsorption [Au(CN)₂⁻], e hlōlisanang le lintho tsa tlhaho tsa shale tse nang le khabone tse fumanehang mafikeng a Afrika Boroa.

Moemeli oa ho Leaching Khauta oa AuLeach™ (GDA) - Ha o Kotsi

Ha Lefapha la Metsi le Bohloeki la Afrika Boroa le tiisa meeli ea ho ntša metsi, AuLeach™ e fana ka mokhoa o mong oa ho ntša metsi o sebetsang hantle haholo o se nang cyanide bakeng sa merafo ea sejoale-joale e hlokomelang ESG.

  • Ha e na Cyanide 'me e lumellana le DWS/NEMA: E khetholloa e le sesebelisoa sa lik'hemik'hale se seng kotsi, AuLeach™ e nolofatsa taolo ea Tailings Storage Facility (TSF) haholo. E qoba ho bokellana ha lik'hemik'hale tse chefo, e fokotsa litšenyehelo tsa ho ntša chefo 'meleng haholo le ho nolofatsa nchafatso ea laesense ea metsi.

  • Ho Nchafatsa Semela se sa Seamless & Transit e Potlakileng: AuLeach™ ke sebaka sa NaCN se tobileng. E sebetsa ka mokhoa o sa senyeheng litankeng tsa CIL/CIP tse seng li ntse li le teng le lipotolohong tsa elution ntle le ntlafatso ea chelete. Ho feta moo, kaha ke thepa e seng kotsi, e feta lithibelo tsa lipalangoang tsa hazmat ho tloha Koung ea Durban.

Thepa e sa Seamless: Boemakepe ba Durban ho ea ho Goldfields ea Afrika Boroa

Phepelo e sa sitisoeng ke motheo oa bophelo ba merafo e meholo ea ka tlas'a lefatše ea Afrika Boroa. United Chemical e thehile ketane ea phepelo ea tšepe e etselitsoeng litsi tsa merafo tsa lehae tsa Afrika Boroa.

  • Ho Lokisa Boemakepe ba Durban le ho Hlakola Lekgetho ka Potlako: Re boloka mela ya ho romela dikhonteinara tse tlang pele Boemakepeng ba Durban, re tshehetswa ke ditokomane tse nolofaditsweng tsa lekgetho bakeng sa NaCN e kotsi ya Sehlopha sa 6.1 le di-reagent tse akaretsang tsa khabone ya indasteri le GDA.

  • Ho ya Dibakeng tsa Diloji tsa Dikepe ka ho Otloloha ho ya Dibakeng tsa Shaft: Ho tloha Durban, balekane ba rona ba nang le laesense ya diloji ba sebetsana le dipalangwang tse potlakileng tsa ditsela le tsa terene ka ho toba ho ya matlong a polokelo a merafo a City Deep (Johannesburg), Welkom (Free State), Klerksdorp (Leboya Bophirima), le Barberton (Mpumalanga).

Leka Li-Reagent tsa Rona Lerung la Hao la Afrika Boroa

Phahamisa sekhahla sa ho hlaphoheloa ha semela sa hau le ho fokotsa tšebeliso ea li-reagent. Batsamaisi ba Limela, Baenjiniere ba Tšepe, le Bahlokomeli ba Lilaboratori ho pholletsa le Afrika Boroa ba mengoa ho kopa lisampole tsa mahala tsa AuCyan™, AuCarb™, kapa AuLeach™ bakeng sa tlhahlobo ea botlolo le ea ho monya.

Kopa Disampole tsa Laboratori tsa Mahala Hona Joale

Ho Tseba ho Hlakola Khauta ka Botebo le ka ho Refractory Afrika Borwa: Litharollo tse Tsoetseng Pele tsa Reagent bakeng sa Witwatersrand le Barberton Africa merafo ya kgauta dikhemikhale tsa ho ntsha di-reagent AuCyan™ Sodium Cyanide NaCN AuCarb™ Pholoso ya Shell ya Kokonate e Kentsweng Khaboneng AuLeach™ Moemedi wa GDA bafepedi ba refractory leaching merafong ya Mponeng Ts'ebetso ya khetla ya Deep CIL e kentsweng khaboneng Johannesburg Bohloeki bo hodimo 98.3% Durban Moemedi ya seng kotsi SA elution electrowinning CIP process recovery from pyritic ores alternative DWS compliance hardness 99% adsorption kinetics Sibanye Stillwater No. 2 picture

Lipotso Tse Botsoang Khafetsa: Ts'ebetso ea Khauta Afrika Boroa

1. AuCyan™ e ntlafatsa ho ntšoa ha khauta ho tsoa marung a pyritic a Barberton Greenstone Belt joang?

Majwe a Barberton (jwalo ka Fairview le Sheba) a na le pyritic le arsenopyritic haholo. Cyanide ya maemo a tlase e thatafallwa ke ho phunyeletsa ka hara sulfide matrix encapsulation. AuCyan™ (bohloeki ba ≥98.3%) e netefatsa hore ho na le mahloriso a mangata a CN⁻ ions a mahala, e boloka matla a matla a ho kganna a ho qhalana ha oxidation le ho eketsa ho hlaphoheloa ha kinetic ho pressure oxidation (POX) kapa CIL tail-leach circuits.

2. Ke hobane'ng ha ho thatafala ha khabone ho le bohlokoa bakeng sa lifeme tse kholo tsa CIP masimong a khauta a Free State Afrika Boroa?

Difeme tsa Free State CIL/CIP di sebetsana le ditone tse dikete tsa lejwe letsatsi le letsatsi di sebedisa di-impeller tse matla a ho sisinyeha. Khabone e bonolo e sebetsang e na le ho hoholeha ho hoholo ha mechini, e fetohang lerōle la khabone le tswang ka di-screen tsa polokeho ho ya matamong a mesaletsa. Khabone e sebetsang ya AuCarb™ e fana ka thata ya ≥99%, e thibelang ho senyeha ha khabone le ho boloka dihlahiswa tsa kgauta.

3. AuLeach™ e thusa merafo ya Afrika Borwa jwang ka ho latela melao ya Lefapha la Metsi le Bohloeki (DWS)?

DWS ea Afrika Boroa e tiisa meeli e tiileng ea maemo a cyanide metsing a merafong ho sireletsa libaka tse potolohileng tsa metsi le li-aquifer. AuLeach™ GDA ha e na cyanide ebile ha e kotsi tikolohong, e lumellang merafo ho fokotsa litšenyehelo tsa kalafo ea merafo haholo le ho latela melaoana ea metsi ea NEMA ntle le mathata.

4. Na AuCarb™ e ka hlola khabone ea shale e utsoang pele ho nako ho Witwatersrand Carbon Leader Reefs?

E. Maru a nang le shale e nang le khabone (thepa e ikatisang pele ho nako) a ka monya kgauta e qhibilihisitsoeng hape pele ho nako. AuCarb™ e na le kinetics ea ho monya kgauta ka potlako le sebopeho se setle sa masoba, e e lumellang ho monya metsoako ea gauta-cyanide ka potlako le ka matla ho feta lintho tsa tlhaho tse ikatisang pele ho nako tse ka har'a lerōle.

5. Maemo a tsamaiso ya thepa bakeng sa ho romela AuCyan™ ho tloha Koung ya Durban ho ya merafong ya Gauteng ke afe?

Lithomello tsohle tsa AuCyan™ (Sehlopha sa 6.1 Thepa e Kotsi) li latela ka tieo maemo a SANS 10228 le SANS 10231. Li-reagent li pakoa ka meropa ea tšepe ea UN e boima, e koetsoeng 'me li tsamaisoa ka likoloi tsa lipalangoang tsa hazmat tse nang le laesense ka ho toba ho tloha Koung ea Durban ho ea matlong a polokelo ea merafo Johannesburg, Carletonville, le Welkom.

6. Na AuLeach™ e tsamaisana le dipotoloho tse seng di ntse di le teng tsa elution le electrowinning tsa Afrika Borwa?

Ka 'nete. AuLeach™ GDA ha e hloke diphetoho tsa motse-moholo. E etsa metswako ya kgauta e tsitsitseng e monyang ka katleho ho Coconut Shell Activated Carbon mme e ntsha ka mokhoa o hlwekileng dimeleng tse tloaelehileng tsa Anglo American kapa Zadra elution le electrowinning (EW).

7. AuCyan™ e sebetsa joang ho li-reactor tsa leach tse matla haholo (HLR) joalo ka litsamaiso tsa Acacia?

Li-reactor tse nang le matla a phahameng tse sebetsanang le li-concentrate tsa khauta ea matla a khoheli li hloka li-reagent tse hloekileng haholo. AuCyan™ (≥98.3%) e qhibiliha ka potlako le ka botlalo, e netefatsa hore likaroloana tse mahoashe le tse ntle tsa khauta lia qhibiliha hoo e ka bang 99% lipotolohong tsa leach tsa li-reactor tsa sehlopha ka hare ho lihora tse ngata.

8. Ke hobane'ng ha limela tsa khauta tsa Afrika Boroa li lokela ho khetha khabone ea khetla ea kokonate ea Indonesia ho feta khabone ea mashala ea lehae?

Leha dikhabone tse thehilweng mashaleng di hlahiswa sebakeng seo, khabone e sebediswang ke khetla ya kokonate e fana ka sebaka se hodimo haholo sa di-micro-pore le ho thatafala ha mechini ho hoholo (≥99%). Khabone ya Coconut ya AuCarb™ e fana ka bokgoni bo hodimo ba ho jara kgauta (boleng ba K) le sekgahla se tlase haholo sa ho kgaoha ha kgase ha e bapiswa le khabone ya mashala.

9. Nako e tloaelehileng ea ho tlisa lijana tsa lik'hemik'hale ho tloha Koung ea Durban ho ea libakeng tsa merafo ke efe?

Hang ha likepe tsa leoatle li eme Koung ea Durban, mekhoa ea rona ea lekhetho e amohetsoeng esale pele e nolofalletsa ho romelloa ha lik'hontheinara matsatsing a 3 ho isa ho a 5 a khoebo. Ho tsamaea ka tsela ho ea Gauteng, Free State, kapa Barberton ho nka lihora tse ling tse 24 ho isa ho tse 48, ho netefatsa hore tsamaiso ea thepa e ka lekanyetsoa esale pele.

10. Litsebi tsa tšepe tsa limela tsa Afrika Boroa li ka kopa lisampole tsa mahala joang bakeng sa tlhahlobo ea botlolo ea laboratori?

Litsebi tse ka Sehloohong tsa Tšepe le Batsamaisi ba Laboratori Afrika Boroa ba ka kopa Disampole tsa Teko tsa Mahala tsa AuCyan™, AuCarb™, kapa AuLeach™ ka foromo ea rona ea ho ikopanya le webosaete. Re romela lisebelisoa tsa sampole ka kotloloho laboratoring ea sebaka sa hau bakeng sa tlhahlobo ea CIL bottle-roll le kinetic adsorption.

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