Dab tsi ntawm Ore yog qhov tsim nyog rau Cyanide Heap Leaching?

Cyanide heap leaching yog ib txoj hauv kev siv dav hauv kev lag luam kub rho tawm rau kev ua qee hom ore. Kev nkag siab txog cov yam ntxwv ntawm ores haum rau cov txheej txheem no yog qhov tseem ceeb rau kev rov qab kub zoo.

1. Kev siv dav dav: Tsawg - Qib Ores

cov Cyanide heap leaching Cov txheej txheem feem ntau tsuas yog tsim nyog rau kev kho mob ntawm cov qib qis kub ores, tshwj xeeb tshaj yog qib qis Oxidized ore. Feem ntau ntawm cov oxidized ores yog nto - oxidized ores. Muab cov coarse ore particle loj hauv cov txheej txheem heap leaching, kev cuam tshuam ntawm cov ore thiab cov cyanide leaching tus neeg sawv cev kuj tsis muaj zog. Yog li ntawd, qhov kub leaching tus nqi tsis yog siab npaum li ib co lwm txoj kev leaching, uas txwv nws daim ntawv thov tsuas yog qis - qib ore uas tus nqi - kev ua tau zoo tseem tuaj yeem khaws cia. Qib kub ntawm ores haum rau cyanide heap leaching yog feem ntau nyob rau hauv thaj tsam ntawm 1.0 - 3.0 g / t, thiab tsuas yog cov kub ore qib ntawm ib tug neeg deposits yog ntau tshaj 3.0 g / t.

2. Ore Structure thiab Compositional yam ntxwv

2.1 Kub Particle yam ntxwv

• Fine los yog tiaj tus - zoo li kub hais: Lub embedded particle loj ntawm kub nyob rau hauv haum ores yog zoo los yog tiaj tus. Cov duab no ua rau nws yooj yim rau kub kom leached los ntawm cyanide. Fine - grained los yog ca - zoo li tus kub hais tuaj yeem muaj kev sib cuag zoo dua nrog cov cyanide leaching tus neeg saib xyuas, ua kom yooj yim rau kev tawg ntawm kub thaum lub sij hawm heap leaching txheej txheem. Piv txwv li, hauv kev nthuav tawm oxidized ores, cov kub feem ntau muaj nyob rau hauv cov khoom zoo uas muab faib thoob plaws hauv cov ore matrix, uas yog qhov zoo rau cyanide leaching.

2.2 Porosity thiab permeability

• Loose, Porous, thiab Permeable Ores: Cov ore yuav tsum xoob, ntxeem tau, thiab permeable vim oxidation thiab huab cua. Cov khoom siv lub cev no muaj txiaj ntsig zoo rau cov tshuaj cyanide kom nkag mus rau hauv cov pob zeb ore. Thaum cov tshuaj cyanide tuaj yeem ncav cuag cov kub - cov khoom muaj nqis, cov tshuaj tiv thaiv leaching tuaj yeem tshwm sim. Ores zoo li cov uas tau huab cua ntev ntev feem ntau tsim cov qauv ntxeem tau, tso cai rau cov tshuaj cyanide kom nkag mus thiab tiv tauj cov khoom kub hauv.

• Ores nrog Accessible Kub los ntawm Crushing: Rau ores nrog ob peb pores thawj zaug, cov kub tuaj yeem raug nthuav tawm los ntawm txoj kev crushing. Qhov no yog ib qho tseem ceeb ntawm kev npaj ua ntej cyanide heap leaching. Los ntawm crushing, cov kub sab hauv - bearing lug tawg, ua rau nws muaj peev xwm rau cov cyanide leaching tus neeg saib xyuas mus rau lub kub. Qee qhov nyuaj ore nrog kub xauv hauv tuaj yeem ua tiav hauv txoj kev no kom lawv haum rau heap leaching.

2.3 Tshuaj muaj pes tsawg leeg

• Tsawg Acids thiab Non-Reactive Elements: Cov ore yuav tsum tsis muaj los yog tsawg acidic tshuaj thiab tsis muaj los yog tsawg dua cov ntsiab lus uas yuav hnov ​​mob nrog cyanide. Cov tshuaj acidic los yog cov khoom ua kom muaj zog tuaj yeem haus cov tshuaj cyanide leaching agent. Piv txwv li, yog tias muaj ntau cov kua qaub hauv cov ore, lawv yuav hnov ​​​​mob nrog cov cyanide, txo cov cyanide muaj rau kub leaching thiab yog li txo cov efficiency ntawm cyanide heap leaching txheej txheem.

• Tsis Kub - Adsorbing lossis Precipitating TshuajCov ore yuav tsum tsis txhob muaj cov tshuaj uas nqus lossis ua rau cov kub yaj. Yog tias muaj cov tshuaj no, lawv tuaj yeem cuam tshuam kev rho tawm kub thaum lub sijhawm leaching cyanide heap, txo qhov kev rov qab tau kub tag nrho. Piv txwv li, qee qhov carbon - cov pob zeb nplua nuj tuaj yeem nqus cov kub yaj - cyanide complex, tiv thaiv nws cov txheej txheem ntxiv rau kev rov qab tau kub.

3. Tej yam tshwj xeeb ore

3.1 Disseminated Oxidized Ore

Disseminated oxidized ores yog heev haum rau cyanide heap leaching. Nyob rau hauv cov ores, kub yog sib npaug zos nyob rau hauv ib tug nplua - grained lub xeev nyob rau hauv lub oxidized pob zeb matrix. Cov txheej txheem oxidation feem ntau ua rau cov ore ntau ntxeem tau, thiab cov nplua - grained kub yog yooj yim nkag mus rau cov tshuaj cyanide. Piv txwv li, nyob rau hauv ib co kub - bearing sandstone deposits uas tau undergone ntev-lub sij hawm huab cua thiab oxidation, cov kub yog disseminated nyob rau hauv lub sandstone matrix, thiab cyanide heap leaching tau zoo extract cov kub.

3.2 Sulfide Ore nrog Tsis-Kub Sib Txuas Zoo

Sulfide ores nyob rau hauv uas kub tsis coexist nrog sulfide minerals kuj yuav kho los ntawm cyanide heap leaching. Nyob rau hauv xws li ore, cov kub tsis nruj nreem khi rau sulfide Cheebtsam. Thaum cov ore yog heap - leached nrog cyanide, lub cyanide tuaj yeem xaiv yaj cov kub yam tsis muaj kev cuam tshuam ntau dhau los ntawm sulfide minerals. Txawm li cas los xij, yog tias cov kub sib txuas nrog sulfide minerals, sulfide yuav tsum tau kho ua ntej (xws li los ntawm kev ci los yog bio - oxidation) kom cov kub siv tau rau cyanide leaching.

3.3 Vein Gold Deposit or Placer Gold Deposit with me me Gold Particles

Vein kub deposits los yog placer kub deposits nrog me me kub hais los yog ib tug loj cheeb tsam ntawm kub hais yog haum rau cyanide heap leaching. Cov kub me me muaj thaj tsam loj dua hauv kev sib cuag nrog cov tshuaj cyanide, uas txhawb nqa cov tshuaj tiv thaiv leaching. Nyob rau hauv cov hlab ntsha kub deposits, yog hais tias cov kub tam sim no nyob rau hauv nplua - grained daim ntawv nyob rau hauv cov hlab ntsha qauv, thiab cov hlab ntsha - hosting pob zeb muaj haum porosity thiab permeability, cyanide heap leaching yuav yog ib txoj kev zoo extraction. Placer kub deposits, qhov twg kub tau weathered thiab eroded rau hauv me me hais, kuj yuav ua tiav siv txoj kev no.

Hauv kev xaus, cyanide heap leaching yog qhov zoo tshaj plaws rau cov qib qis ores nrog cov yam ntxwv tshwj xeeb thiab cov yam ntxwv, suav nrog cov kub zoo- grained, haum porosity, thiab tsis muaj cov khoom cuam tshuam. Los ntawm kev nkag siab txog cov kev cai ore no, kev ua haujlwm tsuas tuaj yeem ua kom zoo dua kev siv cov cyanide heap leaching kom tau txais txiaj ntsig thiab raug nqi - kev rho tawm kub zoo.