Kuyenda mu Kuchotsa Golide ku Burundi: Zopangira Zapamwamba za CIP/CIL za Ma Deposits a Muyinga ndi Mabayi
Burundi ikuyimira limodzi mwa madera omwe akuyembekezeka kukhala ndi golide ku East Africa. Pamene dzikolo likusintha zomangamanga zake zamigodi motsogozedwa ndi Office Burundais des Mines et de la Géologie (OBREMA), kukumba golide kukusintha mwachangu kuchoka pa njira zachikhalidwe kupita ku mafakitale opangidwa ndi Carbon-in-Leach (CIL) ndi vat leaching. Malamba akuluakulu agolide omwe ali m'zigawo zakumpoto monga Muyinga (zigawo za Butihinda ndi Rugari) , madera akumpoto chakumadzulo monga Cibitoke (minda yagolide ya Mabayi / Cimba) , komanso Kirundo ndi Bubanza, amapereka mwayi waukulu kwa osunga ndalama ndi ogwira ntchito m'migodi.
Komabe, oyang'anira mafakitale ndi akatswiri akuluakulu a zitsulo ku Burundi amakumana ndi zovuta zapadera zaukadaulo ndi ntchito. Choyamba, Maunyolo Ovuta Ogulitsa Zinthu Opanda Malo: Popeza ndi dziko lopanda malo, ntchito zamigodi ku Burundi zimadalira kwambiri njira yoyendera ya Central Corridor kuchokera ku Doko la Dar es Salaam ku Tanzania, kulowa kudzera m'malire monga Kobero. Kutumiza mankhwala oopsa a Class 6.1 monga Sodium Cyanide yachikhalidwe kumaphatikizapo kuchotsera zinthu m'malo osiyanasiyana, mitengo yokwera ya katundu, komanso kuchedwa kwakukulu kwa misonkho. Chachiwiri, High-Clay Saprolite ndi Polymetallic Ores: Ma depositi ambiri agolide osaya ku Burundi ali ndi mchere wolemera wa dongo (slimes) womwe umaphimba tinthu tagolide, kuchedwetsa kuyamwa kwa madzi, ndi Carbon yoyipa yomwe imayatsidwa . Kuphatikiza apo, ma depositi akuya ku Mabayi akuwonetsa mgwirizano wovuta wa polymetallic copper-gold womwe umadya zinthu zambiri zosungunuka. Chachitatu, Chitetezo cha Zachilengedwe kuzungulira Nyanja ya Tanganyika: Ndi kuyang'anira mwamphamvu zachilengedwe kuteteza mitsinje yakomweko ndi chigwa cha Nyanja ya Tanganyika, kutayikira mwangozi kapena kutayikira kwa cyanide kumatha kuyambitsa kuyimitsidwa kwakanthawi.
United Chemical imapereka njira zopangira zitsulo zopangidwa mwaluso zomwe zapangidwira makamaka malo opangira migodi ku Burundi. Kudzera mu mzere wathu wolimba wazinthu, kulongedza bwino, ndi njira zapadera zoyendera m'mbali mwa msewu wa Dar es Salaam, tikutsimikizira kuti zinthu zogwiritsidwa ntchito m'njira yodalirika zikupezeka, kubweza golide mokwanira, komanso mtendere wamumtima 100%.
Matrix Yopangidwa Mwapadera Yopangira Golide wa ku Burundi
AuCyan™ Sodium Cyanide NaCN (≥98.3%)
M'malo opangidwa ndi miyala ya polymetallic monga Mabayi komwe mkuwa ndi sulfide zachitsulo zimasokoneza kutuluka kwa golide, chinthu chosungunuka bwino kwambiri n'chofunikira kuti golide asungunuke mofulumira.
Kuyera Kwachilengedwe Kosasinthasintha: AuCyan™ , yovomerezeka pa ≥98.3% ya chiyero, imapereka kuchuluka kwakukulu kwa ma ion a cyanide (CN⁻). Izi zimatsimikizira kusungunuka mwachangu ngakhale mutatulutsa miyala yovuta, zomwe zimapangitsa kuti nthawi yokhazikika ikhale m'matanki a CIL agitation.
Kuyika Zinthu Zosapsa ndi Nyengo ku Central Corridor: Kuyenda kudutsa Tanzania kupita ku Burundi kumafuna chinyezi chambiri komanso kusintha kwa mtunda. AuCyan™ imatsekedwa mu ng'oma zachitsulo zovomerezeka ndi UN zokhala ndi mapulasitiki olemera, zomwe zimaletsa kuyamwa kwa chinyezi ndikutsimikizira kuti mankhwalawo afika ku Muyinga kapena Bujumbura ali bwino.
AuCarb™ Gold Recovery Coconut Shell Activated Carbon (≥99% Kulimba)
Matanthwe a saprolite okhala ndi dongo lalikulu kumpoto kwa Burundi amapanga matope okhuthala komanso okhuthala. Mpweya woipa umasweka mofulumira pamene matope ambiri akugwedezeka, zomwe zimataya golide wambiri m'madzi a m'mphepete mwa nyanja.
Kukana Kwambiri Kutayika (≥99% Kulimba): AuCarb™ imapangidwa kuchokera ku Coconut Shell yapamwamba kwambiri yomwe imayatsidwa ndi kutentha kwambiri. Kulimba kwake kosayerekezeka kumachepetsa kuchepa kwa dongo lolemera, zomwe zimaletsa kutayika kwa golide kudzera mu kuwonongeka kwa kaboni.
Kapangidwe ka Ma Pore a Hyper-Kinetic: Kugawa kwa ma pore komwe kwapangidwa mwapadera kumalola AuCarb™ kuyamwa mwachangu ma complexes agolide [Au(CN)₂]⁻ ngakhale m'matope okhuthala komanso okhala ndi matope ambiri omwe amapezeka mu ntchito zokonza Muyinga.
AuLeach™ Gold Leaching Agent (GDA) - Yopanda Ngozi
Kwa eni migodi omwe akufuna kukonza kutumiza kwa katundu m'malire ndikuwonetsetsa kuti akutsatira malamulo azachilengedwe a OBREMA nthawi yomweyo, AuLeach™ ndiye chisankho chamakono chamakampani.
Kuchotsa Mofulumira Malire: Popeza AuLeach™ imayikidwa m'gulu la mankhwala wamba osaopsa, imalephera kulola zilolezo zonyamula katundu zoopsa ku Port of Dar es Salaam ndi malo owonera malire, zomwe zimachepetsa nthawi yopita ku Burundi ndi masiku 30.
Yogwirizana ndi Zachilengedwe komanso Yogwirizana ndi OBREMA: Mankhwala ochepetsa poizoni komanso opanda cyanide amathandiza kuwunika momwe zinthu zilili pa chilengedwe (EIA), kuchotsa zoopsa za poizoni wa mankhwala m'malo olima apafupi ndi m'madzi omwe ali m'mphepete mwa nyanja ya Tanganyika.
Kudziwa Bwino Central Corridor: Kukonza Zinthu Kodalirika ku Burundi
Kutumiza mankhwala ku Burundi komwe kuli kutali ndi nyanja kumafuna njira zoyendetsera zinthu molondola komanso kudziwa bwino njira zamalonda za ku East Africa. United Chemical Amatenga udindo wonse pa kutumiza kwanu kuchokera pansi pa fakitale kupita pamalo anu opangira zinthu.
Ukatswiri pa Doko la Dar es Salaam: Timayendetsa ntchito yotumiza katundu mwachangu panyanja komanso kulemba zikalata zoyendera kudzera ku Tanzania, popewa kusungira katundu padoko mokwera mtengo komanso ndalama zolipirira kuchotsera msonkho.
Kugwira Ntchito kwa Maulendo a Malire: Ogwira ntchito athu okonza zinthu ndi akatswiri pa kutumiza magalimoto kudzera pa malo oimika magalimoto ku Kobero, kutumiza katundu molunjika kumalo osungiramo migodi ku Muyinga, Cibitoke, kapena malo ogawa katundu ku Bujumbura.
Yesani Ma Reagent Athu pa Zitsanzo Zanu za Maolivi a ku Burundi
Chotsani zongoganizira za ntchito. Tikupempha Oyang'anira Mafakitale, Akatswiri a Zitsulo, ndi Akuluakulu a Migodi ku Burundi kuti apemphe zitsanzo zoyesera kwaulere. Tsimikizirani momwe golide umagwirira ntchito, mphamvu ya carbon adsorption, komanso momwe mungabwezeretsere bwino mu labu yanu musanayambe kuyitanitsa malonda.
Pemphani Zitsanzo za Lab Zaulere Tsopano
Mafunso Omwe Amafunsidwa Kawirikawiri: Kukonza Golide ku Burundi
1. Kodi madera akuluakulu a migodi ya golide ku Burundi ndi ati?
Madipoziti agolide a Burundi ali kumpoto kwa Muyinga (Butihinda ndi Rugari) , chigawo cha kumpoto chakumadzulo kwa Cibitoke (malo a Mabayi / Cimba) , komanso zigawo za Kirundo ndi Bubanza. Maderawa ali ndi zigawo zapamwamba za oxide saprolite komanso pansi pa miyala yolimba ya quartz-vein.
2. Kodi dongo lochuluka mu miyala yagolide ya Muyinga limakhudza bwanji kuchotsedwa kwa CIL?
Dongo lochuluka ndi matope zimawonjezera kukhuthala kwa matope, zomwe zimapangitsa kuti tinthu tagolide timene timalowa m'makoma a golide komanso kuti carbon iwonongeke mwachangu. Kugwiritsa ntchito dispersants pamodzi ndi carbon yolimba kwambiri monga AuCarb™ (≥99% kuuma) kumateteza carbon kusweka ndipo kumatsimikizira kuti golide imalowa bwino kwambiri.
3. Zimatheka motani United Chemical zoyendera sodium cyanide kulowa mu dziko la Burundi lomwe lili ndi gombe?
Timatumiza katundu kudzera pa Doko la Dar es Salaam kudzera mu Central Corridor ya ku Tanzania. Katundu amatumizidwa motsatira chilolezo cha hazmat kudzera m'malire monga Kobero kupita ku Muyinga, Cibitoke, kapena Bujumbura, mothandizidwa ndi ma CD achitsulo ovomerezedwa ndi UN.
4. N’chiyani chimapangitsa kuti AuLeach™, yomwe ndi yothandiza pa chilengedwe, ikhale yofulumira kuitumiza ku Burundi?
Popeza AuLeach™ GDA si yoopsa komanso si ya cyanide, imapewa malamulo okhwima okhudza katundu woopsa pa doko la Dar es Salaam ndi misonkho ya m'malire. Izi zimathandizira kwambiri nthawi yotumizira katundu ndikuchotsa ndalama zolipirira kunyamula katundu wodula.
5. Kodi AuLeach™ ikutsatira malangizo okhudza chilengedwe a Burundi OBREMA?
Inde. AuLeach™ ndi yovomerezeka padziko lonse lapansi kuti ikhale yotetezeka ku chilengedwe komanso yoopsa pang'ono. Kuchotsa zinyalala kuchokera ku AuLeach™ kumafuna kuchotsa zinyalala pang'ono, zomwe zimapangitsa kuti Environmental Impact Assessments (EIA) ikhale yosavuta komanso ikukwaniritsa miyezo yokhwima ya OBREMA pafupi ndi malo osungira madzi.
6. Kodi AuLeach™ ingagwiritsidwe ntchito mu makina omwe alipo a CIL kapena ma vat leaching ku Burundi?
Inde, 100%. AuLeach™ yapangidwa kuti ilowe m'malo mwa Sodium cyanide mwachindunji . Ogwira ntchito m'migodi safunika kusintha matanki, mapampu, kapena ma circuits otulutsira madzi, zomwe zimathandiza kuti ntchito isinthe mosavuta.
7. N’chifukwa chiyani kuyera kwa sodium cyanide (≥98.3%) n’kofunika kwambiri pa miyala ya mkuwa ndi golide ku Cibitoke?
Ma minerals ku Mabayi (Cibitoke) nthawi zambiri amakhala ndi mkuwa ndi mchere wina womwe umadya cyanide yaulere. AuCyan™ Sodium Cyanide (≥98.3%) imapereka ma CN-ions ambiri ogwira ntchito kuti akhalebe ndi mphamvu yamphamvu yotulutsa lixiviant, kupambana mpikisano wa mkuwa ndikuwonjezera kubweza kwa golide.
8. Kodi kugwiritsa ntchito AuLeach™ kumateteza bwanji madzi a m'nyanja ya Tanganyika?
Kugwiritsa ntchito reagent yosaopsa monga AuLeach™ kumachepetsa kwambiri chiopsezo cha madzi otayira kuchokera ku Tailings Storage Facilities (TSF). Izi ndizofunikira kwambiri potsatira malamulo okhwima okhudza chitetezo cha chilengedwe kuzungulira Nyanja ya Tanganyika ndi mitsinje yakomweko, kuteteza mgodi wanu ku zilango zoopsa kapena kutsekedwa mwadzidzidzi ndi akuluakulu azachilengedwe.
9. Kodi ma reagent anu ndi oyenera kusinthidwa kukhala CIL/VAT leaching yovomerezeka ya migodi yaku Burundi?
Inde. Pamene bungwe la OBREMA la ku Burundi likulimbikitsa kuti ntchito yomanga migodi yaukadaulo ichitike mwalamulo, kukweza njira za Vat kapena CIL kumafuna mankhwala okhazikika kwambiri. Timapereka mtundu wokhazikika wa reagent, malangizo olondola a mlingo, komanso kuchuluka kwa zinthu zomwe zingawonjezeke kuti titsimikizire kuti fakitale yanu yatsopano ku Muyinga kapena Cibitoke ikuchira bwino kwambiri.
10. Kodi ogwira ntchito m'migodi ku Burundi angapemphe bwanji zitsanzo za mayeso aulere?
Timalimbikitsa kwambiri kuyesa kwathunthu kwa zitsulo. Oyang'anira mafakitale ndi akatswiri a zitsulo omwe amagwira ntchito ku Burundi akhoza kulankhulana nafe kuti apemphe Zitsanzo zaulere za AuCyan™, AuCarb™, kapena AuLeach™. Tidzagwirizanitsa kutumiza kuti mutsimikizire magwiridwe antchito a kinetic pamtengo wanu musanapereke maoda ambiri.
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- 2Chiyero Chapamwamba · Magwiridwe Okhazikika · Kuchira Kwapamwamba - sodium cyanide yotulutsa golide wamakono
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