Ko sodium cyanide inobatsira sei mukuchera goridhe?

Mukuita kwakaoma uye kwakaoma kwekuchera goridhe , Sodium Cyanide inoita basa rakakosha uye risingawanzonzwisiswi. Chinyorwa chino chine chinangwa chekutsanangura zvizere kuti kemikari iyi inobatsira sei mukuburitswa kwegoridhe kubva mumatombo ayo.

Iyo Nheyo yeSodium Cyanide muKuchera Goridhe

Ndarama, kana iri yechisikigo, inowanzowanikwa mumatombo emhando yakaderera, zvichiita kuti zviome kuparadzaniswa nematombo nemaminerari akaipoteredza. Sodium cyanide (NaCN) inopindirana negoridhe mukuita kunozivikanwa seCyanidation . Maion ecyanide ari musodium cyanide anoumba complex yakagadzikana ine maion egoridhe. Maitiro emakemikari anogona kuratidzwa se:

4Au + 8NaCN+O_{2}+2H_{2}O\rightarrow4Na[Au(CN)_{2}]+4NaOH

Kuita uku kunonyungudutsa goridhe kubva kune ore, kuchiparadzanisa kubva kune gangue (maminerari asingadiwi nedombo). Goridhe rinozobuda - cyanide complex, [Au(CN)_{2}]^{-}, inonyungudika mumvura, inova kiyi yekuparadzana kwayo kubva kune mamwe maore components.

Maitiro Ekushandisa Sodium Cyanide muGoridhe Mining

1. Kugadzira simbi: Kutanga, simbi yegoridhe inocherwa inopwanywa yoitwa upfu hwakatsetseka. Izvi zvinowedzera nzvimbo yepamusoro pesimbi, zvichiita kuti simbi dzegoridhe dzibatane zvakanaka neSodium cyanide solution.

2. Kubvisa tsvina: Dombo reupfu rinoiswa mumatangi makuru kana mumirwi, uye mvura inonyungudutswa yesodium cyanide inopfapfaidzwa kana kuputirwa nayo. Mvura yecyanide inonyungudutsa goridhe zvishoma nezvishoma kwenguva inogona kubva pamaawa akati wandei kusvika kumazuva akati wandei, zvichienderana nerudzi rwedombo racho.

3. Kudzoreredzwa kweGoridhe - Cyanide Complex: Mushure mekubviswa kwemvura , mushonga une gold-cyanide complex unoparadzaniswa kubva kune zvakasara zvakasimba (gangue). Izvi zvinowanzoitwa nenzira dzakadai sekusefa kana sedimentation.

4. Kudonha kwegoridhe: Kuti goridhe riwanikwe kubva mumhinduro yegoridhe-cyanide complex, chinhu chinodzikisa, chakadai seguruva rezinc, chinowedzerwa. Zinc inobvisa goridhe mucomplex, zvichiita kuti goridhe ribude rakasimba. Maitiro emakemikari ndeekuti:

2Na[Au(CN)_{2}]+Zn\rightarrow2Au + Na_{2}[Zn(CN)_{4}]

Goridhe rinonaya rinobva rakwenenzverwa kuburikidza nenzira dzakaita sekunyungudutsa kuti uwane mabharu egoridhe akachena.

Zvakanakira Kushandisa Sodium Cyanide muGoridhe Mining

1. Kushanda Nesimba Kwazvo: Kubvisa goridhe kubva mumatombo emhando yepasi. Kunogona kudzosa goridhe rakawanda riri mumatombo, zvichisvika padanho re80 - 95% kana zvikaitwa zvakanaka.

2. Kusarudza: Sodium cyanide inoratidza kusarudza kwakanyanya kune goridhe. Inonyanya kusangana negoridhe pane zvimwe zvicherwa zvinowanikwa mugoridhe, izvo zvinobatsira mukuparadzanisa goridhe kubva mumusanganiswa wezvinhu zvakaoma nyore nyore.

3. Mutengo - Kubudirira: Zvichienzaniswa nedzimwe nzira dzekubvisa goridhe, dzakadai sekubatanidza mercury (iyo ine njodzi huru dzezvakatipoteredza nehutano) kana maitiro akaomarara uye ane simba rakawanda, cyanidation uchishandisa sodium cyanide inodhura zvishoma, kunyanya pamabasa makuru ekuchera migodhi.

Mafungiro Ezvakatipoteredza uye Kuchengetedzwa

Pasinei nekubudirira kwayo, kushandiswa kwe sodium cyanide mumigodhi yegoridhe hakusi pasina kukakavara. Sodium cyanide ine chepfu zvakanyanya. Chero kuvuza kana kubata zvisina kunaka kwesodium cyanide mhinduro kunogona kutyisidzira zvakanyanya nharaunda uye hutano hwevanhu. Kana ikateuka, cyanide inogona kusvibisa ivhu, matsime emvura, uye kukuvadza zvipenyu zvemumvura. Kudzikamisa njodzi idzi, makambani emigodhi anoteedzera maprotocol akasimba ekuchengetedza. Izvi zvinosanganisira kaviri-maraini ekuchengetera nemadziva ekulecha, kuenderera mberi kwekutarisa mazinga ecyanide muhova dzemarara, uye kushandiswa kwenzira dzepamusoro dzekurapa kubvisa cyanide - ine tsvina isati yaraswa. Pamusoro pezvo, kuedza kuri kuitwa kuvandudza dzimwe nzira, dzakatipoteredza dzekuchera goridhe, asi parizvino, cyanidation ine sodium cyanide inoramba iri nzira huru muindasitiri yemigodhi yegoridhe nekuda kwekuita kwayo uye mutengo - kushanda zvakanaka.

Mukupedzisa, sodium cyanide chinhu chakakosha mumigodhi yegoridhe yemazuva ano. Kugona kwayo kunyungudutsa goridhe kubva kune ores, yakasanganiswa nemutengo wakaderera uye kugona kwakanyanya, kunoita kuti ive yakakosha mukubviswa kwesimbi yakakosha iyi. Zvakadaro, indasitiri iyi inofanirwa kuenderera mberi nekuenzanisa mashandisirwo ayo nematanho akasimba ezvakatipoteredza uye chengetedzo kuti ive nechokwadi chekuchengetedza migodhi yegoridhe.