Kumvetsetsa Zomwe Msika wa Sodium Cyanide M'chigawo cha Africa

Kuwonjezeka Kwa Kufuna Kuchokera ku Zochita Zamigodi Ya Golide

The mgodi wagolide makampani nthawi zonse akhala dalaivala wamkulu wa kufunika kwa sodium cyanide mu Africa. Africa pang'onopang'ono ikukhala malo ofunikira pantchito zamigodi padziko lonse lapansi. Mu mankhwala ndondomeko ya kutulutsa golide, Sodium Cyanide amatenga gawo lofunikira kudzera mu leaching process. Pochita izi, miyalayo imaphwanyidwa kukhala ufa wonyezimira ndipo kenako imathandizidwa ndi a Sodium cyanide njira yothetsera madzi - sungunuka golide mankhwala. Poyerekeza ndi njira zina zochotsera, njirayi imayamikiridwa kwambiri chifukwa cha kuthekera kwake pazachuma, kugwira ntchito mosavuta, komanso kukhazikika kwa chilengedwe. Mu 2021. migodi ya golide ku Africa inasonyeza mphamvu zamphamvu, ndi kupanga golide wa matani 680.3 metric. Mwa iwo, Ghana idakhala yachiwiri - yopereka golide wamkulu ku Africa mu 2022. ndi kupanga pafupifupi matani 90 metric.

Kumadzulo kwa Africa kwasanduka malo abwino kwambiri ofufuza golide. Chifukwa chakuti chuma chake chochuluka sichinapangidwe, chakopa ndalama zambiri za mayiko. Kukula kosalekeza kwa zomangamanga za migodi m'chigawo chino kukuwonekera kuchokera kuzinthu zake zochititsa chidwi za golide, kuphatikizapo mapulojekiti 367 omwe akufufuzidwa, katundu 24 akuwunikidwa pa zachuma, ndi katundu 61 m'magawo opangira kapena kumanga. Ntchito zamigodi zazikulu monga mgodi wa golidi wa South Deep, mgodi wa golide wa Kromdraai, ndi mgodi wa golidi wa Mponeng ku South Africa zikupitilira kupangitsa kuti pakhale kufunikira kwa sodium. cyanide mu njira zawo zochotsera. Kukhalapo kwa makampani ambiri a migodi yapadziko lonse lapansi komanso kupititsa patsogolo ntchito zatsopano zamigodi kumalimbitsanso chiyembekezo chamakampani opanga migodi m'derali.

Kuchulukitsa Kufunika Kwa Kugwiritsa Ntchito Chemical ndi Polymer Synthesis

Indasitale ya khemikhali ndi gwere lofunika kwambiri la kugwiritsiridwa ntchito kwa sodium cyanide, makamaka ku South Africa, kumene makampani a mankhwala amatengera pafupifupi 25% ya malonda opangira zinthu mdziko muno. Sodium cyanide (NaCN) ili ndi njira zambiri zogwiritsira ntchito mankhwala osiyanasiyana, kuphatikizapo kupanga ma polima, cyanuric chloride, ndi cyanogen chloride. Mafakitale amphamvu a maindasitale a ku South Africa ndi udindo wake ngati umodzi mwa mizinda ikuluikulu ya indasitale ya mankhwala mu Afirika zikupereka thandizo lolimba pa chitukuko cha makampani opanga mankhwala. Kuchuluka kwazinthu zopangira komanso kuchulukitsa ndalama zakunja kumabweretsa mwayi wokulirapo kwamakampani opanga mankhwala mdziko muno.

Kukula kosalekeza kwamakampani opanga pulasitiki ku Africa kumalimbikitsanso kufunikira kwa sodium cyanide mu kaphatikizidwe ka polima ndi magawo ena ogwiritsira ntchito mankhwala. Makampani opanga mankhwala, monga gawo lofunikira la kumtunda kwa mafakitale amigodi ndi aulimi, amapangitsa kuti pakhale kufunikira kosiyanasiyana kwa mankhwala opangira golide. Opanga mankhwala akuluakulu monga Sasol, omwe amagwiritsa ntchito malo opangira sodium cyanide motsatira malamulo a International Cyanide Management Code, amakumana mosalekeza ndi kuchuluka komwe kukufunika kuchokera kuzinthu zosiyanasiyana zama mankhwala. Kuphatikizika kwa makampani opanga mankhwala ndi zigawo zina zamafakitale, kuphatikiza chithandizo chachitsulo, kupanga utoto, ndi kupanga agrochemical, kumayendetsanso kugwiritsiridwa ntchito kwa ma reagents amigodi mukugwiritsa ntchito kaphatikizidwe ka mankhwala.

Ndikoyenera kutchula kuti m'munda wapadziko lonse wa sodium cyanide, Shaanxi United Chemical chikuwoneka ngati m'modzi mwa otsogola opanga ndi ogulitsa sodium cyanide. Kampaniyo ili ndi mafakitale aukadaulo, umisiri wotsogola wopanga, ndi machitidwe okhwima owongolera, ndipo imatha kupatsa makasitomala zinthu zapamwamba komanso zotsika mtengo za sodium cyanide. Kaya ndi migodi ya golide kapena minda yamankhwala ndi polima kaphatikizidwe, Shaanxi United Chemical imatha kukwaniritsa zosowa zosiyanasiyana za makasitomala osiyanasiyana ndi zinthu zake zapamwamba kwambiri ndikuthandizira kukulitsa mafakitale osiyanasiyana.