Kuthana ndi Kugwiritsidwa Ntchito Kwambiri kwa Sodium Cyanide M'migodi ya Golide Leaching

Mu makampani opanga golide, njira yochotsera golide m'matanthwe a golide imakhalabe maziko opezera golide kuchokera ku miyala. Komabe, nkhani yogwiritsa ntchito kwambiri Sodium cyanide panthawi yochotsa golide m'migodi sikuti imangowonjezera ndalama zogwirira ntchito komanso imabweretsa zoopsa zazikulu zachilengedwe ndi chitetezo. Nkhaniyi ikufotokoza zomwe zimayambitsa vutoli, njira zodziwira bwino, komanso njira zothandiza zothetsera vutoli.

Kumvetsetsa Zomwe Zimayambitsa

1. Makhalidwe a Ore

• Mineralogy Yovuta : Mamineral okhala ndi zinthu zovuta kwambiri angayambitse kugwiritsa ntchito cyanide yambiri . Mwachitsanzo, mchere wa sulfide umakumana ndi cyanide, ndikupanga mankhwala a thiocyanate. Arsenopyrite ndi pyrrhotite mu miyalayi zimatha kugwiritsa ntchito cyanide kudzera mu okosijeni ndi kusintha kwa complexation, zomwe zimaichotsa ku njira yochotsera golide.

• Kuchuluka kwa Kaboni : Ma carbon oils ali ndi zinthu zachilengedwe zomwe zimayamwa golide-cyanide complexes, chinthu chodziwika kuti "preg-robbing." Izi zimakakamiza kuwonjezera cyanide yambiri kuti ibwezeretse kutayika kwa ntchito yochotsa, zomwe zimapangitsa kuti igwiritsidwe ntchito kwambiri.

2. Zinthu Zogwirira Ntchito

• Kusakhazikika Kokwanira : Kusasakaniza mokwanira panthawi yochotsa miyala kumabweretsa kusagwirizana kosayenera pakati pa miyala ndi yankho la cyanide. Izi zimalepheretsa kusungunuka kwa golide ndipo zimapangitsa ogwiritsa ntchito kuwonjezera cyanide yambiri poyembekeza kuti kuchuluka kwa miyala yochotsedwa kukhale kokwera.

• Miyezo ya pH yosakwanira : Kuchuluka kwa mchere kumadalira kwambiri pH, ndipo nthawi zambiri kumakhala pakati pa 10.5 ndi 11.5. pH yochepera pa iyi imapangitsa kuti cyanide isinthe kukhala mpweya wa hydrogen cyanide, zomwe zimachepetsa kupezeka kwake kuti golide asungunuke. Kumbali ina, pH yochuluka kwambiri imatha kusokoneza njira ya cyanide, zomwe zimathandizanso kuti anthu azigwiritsa ntchito kwambiri.

3. Ubwino wa Madzi

• Madzi Olimba : Madzi okhala ndi calcium yambiri, magnesium, ndi ma ayoni ena achitsulo amatha kuchitapo kanthu ndi cyanide, ndikupanga ma complexes a cyanide achitsulo osasungunuka. Machitidwewa amachotsa cyanide mu yankho lotulutsa madzi, zomwe zimapangitsa kuti pakhale cyanide yowonjezera.

• Kuchuluka kwa Oxygen : Ngakhale kuti mpweya ndi wofunikira kwambiri pakupanga golide wokhuthala panthawi ya cyanidation, kuchuluka kwambiri kumatha kufulumizitsa kupanga kwa cyanide yokha, zomwe zimapangitsa kuti iwonongeke mwachangu komanso kuti igwiritsidwe ntchito kwambiri.

Njira Zodziwika

1. Nthawi Zonse Zitsanzo ndi Kusanthula

Sonkhanitsani zitsanzo za njira yothetsera leaching pazigawo zosiyanasiyana za ndondomekoyi, kuphatikizapo chakudya, chapakati, ndi zotayira. Unikani zitsanzo izi za ndende ya cyanide pogwiritsa ntchito njira monga titration, ion chromatography, kapena colorimetric assays. Kuyerekeza milingo ya cyanide yoyezedwa ndi mfundo zongoyerekeza zitha kuthandizira kuzindikira momwe amagwiritsidwira ntchito molakwika.

2. Monitoring Process Parameters

Pitirizani kuyang'anira magawo ogwiritsira ntchito ngati pH, kutentha, kuthamanga kwa chisokonezo, ndi mpweya. Kupatuka kuchokera pamagawo abwino kwambiri kumatha kuwonetsa zovuta zomwe zimapangitsa kuti cyanide idye kwambiri. Khazikitsani makina owunikira omwe amatha kuyambitsa ma alarm pamene magawo akuchoka pamalire omwe akhazikitsidwa.

3. Makhalidwe Ore

Chitani kusanthula kwatsatanetsatane kwa mineralological ndi chemical zamagulu a ore omwe akubwera. X-ray diffraction (XRD), scanning electron microscopy (SEM), ndi atomic absorption spectroscopy (AAS) atha kupereka zidziwitso za kapangidwe ka ore, kuthandizira kulosera momwe cyanide imagwiritsidwira ntchito ndikusintha momwe leaching imagwirira ntchito.

Mayankho Othandiza

1. Kusamalira Ore

• Kuchiza Oxidative Pretreatment : Pa miyala yokhala ndi sulfide minerals, njira zochizira oxidative pretreatment monga kuwotcha, pressure oxidation, kapena bio-oxidation zingagwiritsidwe ntchito. Njirazi zimaphwanya sulfide minerals, kuchepetsa reactivity yawo ndi cyanide ndikuwonjezera mphamvu yotulutsa golide pamene akuchepetsa kugwiritsa ntchito cyanide.

• Kuchotsa Kaboni : Pankhani ya miyala ya kaboni , kuchotsedwa kwa kaboni pogwiritsa ntchito mpweya woyambitsa kapena zinthu zina zochotsa kaboni kungathandize kuthetsa zotsatira zake. Izi zimathandiza kuti cyanide iyang'ane kwambiri pakusungunula golide m'malo mogwiritsidwa ntchito ndi zinthu za kaboni.

2. Njira Kukhathamiritsa

• Kusintha kwa Kugwedezeka ndi Mpweya : Onetsetsani kuti mpweya uli ndi mpweya wabwino komanso wokwanira kuti mulimbikitse kusakanikirana kofanana komanso kusamutsa mpweya wabwino kwambiri. Chitani mayeso a skeli kuti mudziwe liwiro loyenera la kugwedezeka ndi mpweya wabwino pamitundu yosiyanasiyana ya miyala ndi mikhalidwe yotuluka.

• Kuwongolera pH : Ikani makina owongolera pH okha omwe angathe kusintha pH ya yankho lochotsa madzi. Gwiritsani ntchito laimu kapena sodium hydroxide kuti pH ikhalebe mkati mwa mulingo woyenera, kupewa kuwonongeka kwa cyanide ndikuwonetsetsa kuti golide wasungunuka bwino.

3. Chithandizo cha Madzi

• Kufewetsa : Thirani madzi ogwiritsidwa ntchito kuti muchotse ma ayoni omwe amayambitsa kuuma. Ma resins osinthana ma ayoni kapena kufewetsa laimu angagwiritsidwe ntchito kuti ma ayoni a calcium ndi magnesium ayambe kuuma, kuchepetsa kusokoneza kwawo ndi yankho la cyanide.

• Kusamalira Mpweya Wa Oksijeni : Konzani bwino momwe mpweya umaperekedwera kuti utuluke. Gwiritsani ntchito masensa a mpweya kuti muwonetsetse kuti mpweya wosungunuka uli wokwanira kuti golide utuluke koma osapitirira muyeso kuti uwononge cyanide.

4. Reagent Management

• Zosintha za Cyanide : Fufuzani kugwiritsa ntchito njira zina zochotsera poizoni monga thiosulfate, thiourea, kapena njira zochotsera poizoni pogwiritsa ntchito chloride. Zosintha izi zitha kukhala ndi zotsatira zochepa pa chilengedwe komanso kuchepetsa kugwiritsa ntchito kwake poyerekeza ndi Sodium Cyanide , makamaka pamitundu ina ya miyala.

• Kubwezeretsanso Zinthu Zobwezeretsanso : Gwiritsani ntchito njira zobwezeretsanso ndi kubwezeretsanso cyanide. Zipangizo monga kusinthana kwa ma ion, electrowinning, ndi kusefa kwa membrane zingagwiritsidwe ntchito kubwezeretsa ndikugwiritsanso ntchito cyanide kuchokera ku matope otayira, kuchepetsa kugwiritsidwa ntchito konse ndi kupanga zinyalala.

Njira Zowononga

1. Maphunziro Ogwira Ntchito

Perekani maphunziro athunthu kwa ogwira ntchito ku migodi ndi kukonza njira za cyanidation, kugwiritsa ntchito zida, ndi kukonza. Ogwira ntchito ophunzitsidwa bwino amatha kuzindikira ndikuthana ndi zovuta mwachangu, kuwonetsetsa kuti njira yophunzitsira ikuyenda bwino komanso moyenera.

2. Data Analytics ndi Modelling

Gwiritsani ntchito zida zowunikira deta ndikuwongolera njira zowonetsera kuti muwunike mbiri yakale komanso nthawi yeniyeni. Pozindikira zomwe zikuchitika komanso kulumikizana, ogwiritsa ntchito amatha kulosera zamavuto omwe atha kukhudzana ndi kumwa kwa cyanide ndikuchitapo kanthu kuti apewe.

3. Kufufuza ndi Kuyendera pafupipafupi

Chitani kafukufuku wanthawi zonse wamkati ndi wakunja wa njira ya cyanidation. Zowunikirazi zitha kuthandizira kuzindikira madera omwe angasinthidwe, kuwonetsetsa kuti akutsatira malamulo a chilengedwe ndi chitetezo, komanso kusunga bwino ntchito yonse yotulutsa golide.

Pomaliza, kuthana ndi kugwiritsa ntchito kwambiri sodium cyanide mu migodi ya golide kumafuna njira zosiyanasiyana zomwe zimaphatikizapo kumvetsetsa zomwe zimayambitsa, kugwiritsa ntchito njira zodziwira bwino, kugwiritsa ntchito njira zoyenera, komanso kutenga njira zodzitetezera. Pochita izi, makampani opanga migodi sangangochepetsa ndalama zokha komanso kupititsa patsogolo kukhazikika kwa chilengedwe cha ntchito zawo zofukula golide.