Kuthana ndi Mavuto a VMS Ore ku Horn of Africa: Zopangira Zapamwamba za Golide ku Eritrea
Eritrea ikulimbitsa mwachangu malo ake ngati malo amphamvu mu gawo la migodi ku Horn of Africa. Ndi ntchito zapamwamba padziko lonse lapansi monga mgodi wa Bisha polymetallic (zinc-copper-gold-silver) ndi golide wa Koka (Zara Mining Share Company), chuma cha dzikolo sichingatsutsidwe. Komabe, kupanga zitsulo ku Eritrea sikuli kopanda zovuta zake zaukadaulo. Malo akuluakulu okhala ndi Volcanogenic Massive Sulfide (VMS) komanso malo ovuta am'deralo amafunikira njira zapadera kwambiri zamankhwala.
Akatswiri opanga zitsulo omwe amagwira ntchito ku Eritrea akukumana ndi mavuto atatu akuluakulu komanso osiyana. Choyamba, mineralogy: Ma VMS deposits amadziwika ndi kuchuluka kwa mkuwa ndi zinc wosungunuka. Zitsulo zina izi zimagwira ntchito ngati "cyanicides" wamphamvu, zomwe zimadya zinthu zambiri za Sodium Cyanide Golide asanatuluke, zomwe zimapangitsa kuti OPEX ichuluke kwambiri. Chachiwiri, zoletsa zachilengedwe: Nyengo youma ku Eritrea ikutanthauza kuti madzi ndi ofunika kwambiri. Bungwe la Eritrean National Mining Corporation (ENAMCO) likutsata mfundo zolimba zoti zisawononge madzi a pansi pa nthaka (Tailings Storage Facilities (TSF)) kuti ateteze madzi apansi panthaka omwe akusowa. Chachitatu, kayendedwe ka zinthu ku Nyanja Yofiira: Katundu wofika padoko la Massawa amakumana ndi kutentha kwa chilimwe kopitirira 45°C. Kutumiza katundu mkati mwa dzikolo kudutsa m'malo ovuta komanso amapiri kupita ku malo akutali a migodi kumafuna kulongedza mankhwala omwe sangawonongeke komanso osatentha kwambiri.
United Chemical yapanga njira zinazake zopangira golide kuti zithetse mavuto awa aku Eritrea. Mwa kuchepetsa kusokoneza kwa zitsulo, kupeza zinthu zotentha kwambiri, komanso kupereka njira zina zotsatizana ndi chilengedwe, timapatsa mphamvu fakitale yanu kuti ipeze kuchuluka kwa kubweza zinthu pamene ikuchepetsa kwambiri kugwiritsa ntchito mankhwala onse.
Zinthu Zobwezeretsa Golide Zapadera Zopangidwira Eritrea
AuCyan™ Sodium Cyanide NaCN (≥98.3%)
Pokonza miyala ya mkuwa ndi golide ya ku Eritrea, yotsika mtengo cyanide ndi vuto la zachuma. Miyala yamkuwa yosungunuka (monga chalcocite ndi covellite) imalumikizana mwachangu ndi cyanide yofooka, osasiya chilichonse cha golide. Kuphatikiza apo, kutentha kwakukulu kwa doko la Massawa kumafuna kukhazikika kosalekeza.
Kugonjetsa Mankhwala Ophera Mankhwala a Cyanicides mu VMS Ores: Chotsimikizika pa chiyero chapamwamba cha ≥98.3%, AuCyan™ imapereka kuchuluka kwakukulu kwa cyanide yaulere (CN-). Kuchuluka kwa mankhwala kumeneku kumalola akatswiri a zitsulo kugonjetsa gawo la copper-cyanide complexation, kuonetsetsa kuti zotsalira za lixiviant zokwanira kuti zisungunuke golide mwachangu, potsirizira pake kuchepetsa kuchuluka kwa dosing.
Kupaka Kosatentha ndi Nyanja Yofiira: Timayika AuCyan™ m'madiramu achitsulo olemera komanso ovomerezeka ndi UN okhala ndi matumba a polima amkati otsekedwa kawiri. Yapangidwa kuti izitha kupirira dzuwa lotentha la Massawa la chilimwe komanso kugwedezeka kwamphamvu kwa mayendedwe akumapiri, ndikutsimikizira kuti chinthucho chidzakhala chouma 100% komanso chosasunthika chikafika.
AuCarb™ Gold Recovery Coconut Shell Activated Carbon (≥99% Kulimba)
Mu mabwalo a polymetallic komwe ma slurries ndi okhuthala kwambiri komanso odzaza kwambiri, osagwiritsidwa ntchito bwino Carbon idzasweka ndi kusweka. Mpweya ukaphwanyika, golide amene uli nawo umatayika kwamuyaya ku mbuyo.
Hyper-Kinetics mu Complex Slurries:AuCarb™ Ili ndi kapangidwe ka macroporous kopangidwa bwino kwambiri komwe kamayang'ana makamaka [Au(CN)₂]⁻ complex, komwe kamasunga liwiro la kulowetsedwa mwachangu ngakhale m'malo odzaza ndi ma base-metal complexes opikisana.
Sizingatheke mu CIL/CIP: Yoyatsidwa ndi kutentha kuchokera ku apamwamba Chipolopolo cha CoconutNgakhale kuti ndi yolimba kwambiri kuposa ≥99%, AuCarb™ ilibe vuto lililonse lotha kusungunuka. Imapirira kudulidwa kwamphamvu kwa matanki a ku Eritrea, zomwe zimathandiza kuti golide awonongeke chifukwa cha carbon failure.
AuLeach™ Gold Leaching Agent (GDA) - Yopanda Ngozi
Mu malo ouma ku Eritrea, madzi apansi panthaka ndi chuma chofunikira kwambiri m'dzikolo. ENAMCO imatsatira miyezo yokhwima ya ESG pa ntchito zamigodi. Kutuluka kwa cyanide koopsa ndi chiwopsezo ku ubale ndi anthu ammudzi komanso zilolezo zogwirira ntchito.
Kusamalira Nsalu Zosavulaza:AuLeach™ yavomerezedwa padziko lonse lapansi ngati chotsitsa golide chopanda poizoni komanso chopanda ngozi. Mwa kusintha NaCN, imaonetsetsa kuti madzi anu a TSF (Tailings Storage Facility) sali pachiwopsezo ku madzi am'madzi am'deralo, zomwe zimapangitsa kuti kutsata malamulo azachilengedwe kukhale kosavuta komanso kuwunikira.
Kulipira Mwachangu kwa Misonkho ku Massawa: Popeza sichili m'gulu la Katundu Woopsa wa Gulu 6.1, AuLeach™ imapewa zopinga zazikulu zolamulira, zilolezo zapadera, ndi zofunikira zoyendera anthu okhala ndi zida ku Port of Massawa, zomwe zimafika pafakitale yanu milungu ingapo isanafike nthawi yoikidwiratu.
Kudziwa Zambiri Zokhudza Malo Ogulitsira ku Nyanja Yofiira: CIF Port of Massawa
Kutumiza mankhwala ku Horn of Africa kumafuna kukonzekera bwino. Kuchedwa padoko chifukwa cha mapepala olakwika kapena katundu wowonongeka chifukwa cha kutentha kwambiri kungalepheretse fakitale yotulutsa mankhwala yolemera madola mamiliyoni ambiri.
Njira Yolunjika ya Nyanja Yofiira: Timapeza mgwirizano wa CIF/CFR wopikisana kwambiri mwachindunji ku Doko la MassawaTimagwirizana ndi makampani odziwa bwino ntchito zonyamula katundu woopsa wa Class 6.1 m'madera otentha kwambiri a Nyanja Yofiira.
Zolemba Zosalakwa: Timaonetsetsa kuti tikutsatira malamulo onse oyendetsera katundu ochokera ku China komanso malamulo oyendetsera katundu ochokera ku Eritrea. Ma invoice athu amalonda, ma COA, ndi ma sheet a data a chitetezo cha zinthu (MSDS) amatsimikizira kuti katunduyo aperekedwa nthawi yomweyo kwa othandizira anu ogulitsa katundu.
Tsimikizirani Magwiridwe Anu a Polymetallic Ores
Musalole kuti mkuwa wambiri ukulitse mtengo wa cyanide yanu. Tikupempha Akatswiri Akulu a Zitsulo ndi Oyang'anira Mitengo ku Eritrea kuti apemphe zitsanzo zaulere za labotale. Yesani mayeso a kinetic bottle-roll mwachindunji pa ma VMS ores anu enieni ndikulola deta yobwezeretsayo kuti ilankhule yokha.
Pemphani Zitsanzo za Lab Zaulere TsopanoMafunso Omwe Amafunsidwa Kawirikawiri: Kugulitsa Zitsulo za Golide ku Eritrea
1. N’chifukwa chiyani kugwiritsa ntchito cyanide kuli kokwera kwambiri m’ma VMS a ku Eritrea?
Ma Volcanogenic Massive Sulfide (VMS) deposits, omwe amapezeka ku Eritrea, amakhala ndi mkuwa wosungunuka komanso zinc wambiri. Zitsulo izi zimagwira ntchito mwamphamvu ndi cyanide, zomwe zimapangitsa kuti zikhale zokhazikika (monga Cu(CN)₃²⁻) ndikumeza reagent isanatulutse golide. Izi zimadziwika kuti "cyanicide".
2. Kodi AuCyan™ imathetsa bwanji vuto la mkuwa wambiri m'matanthwe a golide?
Mwa kutsimikizira kuyera kwakukulu kwa ≥98.3%, AuCyan™ NaCN Amachepetsa zinyalala zosagwira ntchito ndipo amapereka kuchuluka kwakukulu kwa cyanide (CN-) yogwira ntchito. Izi zimatsimikizira kuti ngakhale mkuwa utadya gawo la reagent, pamakhalabe kuchuluka kwamphamvu komwe kumatsalira kuti kukhale kovuta kwambiri ndikusungunula golide, zomwe zimachepetsa kufunika kwa mlingo wonse.
3. Kodi AuLeach™ ikutsatira malamulo okhudza chilengedwe a ENAMCO?
Inde. Kuteteza madzi n'kofunika kwambiri m'nyengo youma ku Eritrea. Wothandizira Kuchotsa Golide wa AuLeach™ ndi 100% yopanda ngozi komanso yopanda poizoni. Pogwiritsa ntchito AuLeach™, migodi imatha kuonetsetsa kuti malo awo osungiramo zinthu zakale (TSF) sakuipitsa madzi apansi panthaka omwe akusowa, mogwirizana ndi malangizo okhwima a ENAMCO a ESG.
4. Zimatheka motani United Chemical phukusi la NaCN la kutentha kwambiri ku Massawa?
Kutentha ku Doko la Massawa kumatha kupitirira 45°C. AuCyan™ Ili m'madiramu achitsulo olemera komanso ovomerezeka ndi UN omwe ali ndi ma polymer liners ambiri otsekedwa ndi kutentha. Kapangidwe kameneka kamaletsa kuphulika kwa kutentha ndipo kamaletsa kulowa kwa chinyezi, zomwe zimapangitsa kuti mankhwalawo akhale ouma komanso amphamvu panthawi yoyenda mkati mwa dzikolo.
5. Kodi AuCarb™ imatha kupirira kugwedezeka kwa CIL kwakukulu m'mabwalo a polymetallic?
Zoonadi. Ma slurry a polymetallic nthawi zambiri amakhala okhuthala komanso okhwima. AuCarb™ Coconut Shell Activated Carbon Imayatsidwa ndi kutentha kwambiri mpaka kuuma kwambiri kwa ≥99%. Imakana kusweka kapena kusweka kukhala fumbi losalala panthawi ya kugwedezeka mwamphamvu, zomwe zimaletsa kutayika kwakukulu kwa zilango zodzaza ndi golide ku tailings.
6. Kodi AuLeach™ imachotsa msonkho mwachangu pa doko la Massawa?
Inde. Sodium cyanide (Kalasi 6.1) imafuna malo ovuta otetezera, apolisi oti aziperekeza, ndi zilolezo zosungira zinthu zoopsa ku Massawa. AuLeach™ ndi yovomerezeka kuti si yoopsa, imakonzedwa ngati katundu wamba wamafakitale, kuchotsa zopinga zolamulira ndikufika pamalo anu mwachangu kwambiri.
7. Kodi migodi ya ku Eritrea iyenera kusintha zida kuti igwiritse ntchito AuLeach™?
Palibe ndalama zogulira zofunika. AuLeach™ yapangidwa ngati cholowa m'malo mwa sodium cyanideMumangoyiyika m'matangi anu osinthira kapena m'mabwalo olowetsa madzi pogwiritsa ntchito mapampu anu apano, ndikupitiliza kugwiritsa ntchito AuCarb™ yanu yokhazikika kuti muzitha kuyamwa.
8. Kodi AuCarb™ imapikisana bwanji ndi mkuwa wambiri panthawi yothira madzi?
Pamene pali mitundu yambiri ya copper-cyanide, imapikisana ndi golide kuti ipeze malo m'mabowo a carbon. AuCarb™ Yapangidwa ndi kapangidwe ka macroporous kokonzedwa bwino kwambiri komwe kamakomera kwambiri complex ya mzere [Au(CN)₂]⁻, kuonetsetsa kuti golide amamwetsedwa mwachangu ngakhale m'njira zodzaza ndi zitsulo zamitundu yosiyanasiyana.
9. Kodi tingapemphe chitsanzo choyesera malo athu a mgodi ku Eritrea?
Inde, tikulimbikitsa kwambiri. Mainjiniya a zitsulo aku Eritrea angapemphe Zitsanzo za Mayeso Aulere ya AuCyan™, AuCarb™, kapena AuLeach™. Tidzagwirizanitsa kutumiza ku malo anu kuti muthe kuyesa mayeso oyambira a botolo ndikutsimikizira phindu la OPEX pa ndalama zanu.
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