Sodium cyanide muMurwi Leaching: Chinhu Chinokosha muMigodhi yeGoridhe

Munzvimbo yemigodhi yemazuva ano, Heap Leaching yabuda senzira inogamuchirwa nevakawanda uye inodhura - inoshanda yekuchera goridhe kubva kune yakaderera-giredhi ores. Pakati pezvinhu zvakasiyana-siyana zvemuitiro uyu, Cyanide, kunyanya Sodium Cyanide (NaCN), inoita basa rakakosha.

Kukosha kweSodium Cyanide muKuchera Goridhe

Nhamba dzinoratidza izvozvo sodium cyanide inoshandiswa muchikamu che80%. Kuchera Goridhe maitiro. Iyi chiyero chepamusoro chekushandisa inosimbisa kukosha kwayo muindasitiri yemigodhi. Semuenzaniso, mumugodhi muTanzania, mushure mekutanga kwe Sodium cyanide semumiririri weLeaching, kuvandudzwa kunoshamisa kwakaonekwa. Ore dressing recovery rate yakakwira kubva pa60% kusvika 85%, uye zvakabuda zvakawedzerawo zvakanyanya. Nhamba idzi hadzingoratidzi kushanda kwesodium cyanide mukuita kwekubatsira asi zvakare inosimbisa basa rayo rakakosha mukusimudzira goridhe kudzoreredza mitengo uye mavhoriyamu ekugadzira.

Iyo Mechanism yeSodium Cyanide muMurwi Leaching

Mumurwi wekucheka kwemurwi, iyo yakaderera-giredhi goridhe ore kana mitsara inoturika inotutira padhi rakagadzirwa risingapindiki. Zvadaro, mhinduro ye sodium cyanide inopfapfaidzwa pamusoro pemurwi weore nenzira yekutenderera. Muhupo hweokisijeni (kazhinji kubva kumhepo), sodium cyanide inopindirana negoridhe riri mu ore. Iyo kemikari yekuita inogona kuwanzo kuratidzwa sezvinotevera: 4Au + 8NaCN + O₂+ 2H₂O = 4Na[Au(CN)₂]+ 4NaOH. Kuburikidza nekuita uku, goridhe rinogadzira soluble complex, sodium aurocyanide (Na[Au(CN)₂]), iyo inobva yanyunguduka mumushonga uye inogona kudzorerwa zvakare.

Zvakanakira Kushandisa Sodium Cyanide muMurwi Leaching

1. Kubudirira Kwepamusoro: Sezvinoratidzwa mumuenzaniso wemugodhi weTanzania, sodium cyanide inogona kunyatsonyungudutsa goridhe kubva mu ores, zvichiita kuti kuwedzere kukuru kwehuwandu hwekudzoreredza. Uku kugona kukuru mukutora goridhe kubva kune yakaderera-giredhi ores inoita murwi leaching nesodium cyanide sarudzo inoshanda kumigodhi yaizonzi haina hupfumi.

2. Mutengo - kubudirira: Kuenzaniswa nedzimwe nzira dzekubvisa goridhe, kushandiswa kwesodium cyanide mumurwi leaching kunodhura. Mutengo wese wemurwi wekucheka kwemurwi, kusanganisira mutengo wesodium cyanide, unowanzo kuderera pane iwo wakaoma uye simba - nzira dzekubvisa zvakanyanya. Mutengo uyu - kushanda zvakanaka ndicho chinhu chikuru chiri kupa kuti ishandiswe zvakanyanya muindasitiri yezvicherwa.

Matambudziko uye Chengetedzo Yakabatana neSodium Cyanide

1. Toxicity: Sodium cyanide ine muchetura zvakanyanya. Chero kuvuza kana kubata zvisina kunaka kweiyo cyanide mhinduro inogona kutyisidzira zvakanyanya nharaunda uye hutano hwevanhu. Naizvozvo, matanho akasimba ekuchengetedza uye mapuroteni ekuchengetedza kwezvakatipoteredza anofanirwa kunge aripo panguva yekuchengetedza, yekufambisa, uye kushandiswa kwesodium cyanide. Migodhi inosungirwa kuve nemagadzirirwo akanyatsogadzirwa ekudzivirira kurasika kwecyanide uye nzira dzekurapa dzakasimba dzecyanide - dzine zvinogadzirisa tsvina.

2. Kuteerera Kwemitemo: Nekuda kwehupfu hwayo, kushandiswa kwesodium cyanide kunoenderana nemirairo yakasimba munyika dzakawanda. Makambani emigodhi anofanirwa kutevedzera iyi mirau ine chekuita nekuchengetwa, kubata, uye kuraswa kwecyanide. Izvi zvinosanganisira kugara uchitarisisa mazinga ecyanide mumarara emarara uye kuona kuti anozadzikisa zviyero zvinotenderwa zvezvakatipoteredza.

Mukupedzisa, sodium cyanide chinhu chakakosha reagent mumirwi leaching maitiro ekuchera goridhe. Kushanda kwayo kwakanyanya uye mutengo - kushanda kunoita kuti ive sarudzo yakasarudzika yekubvisa goridhe kubva kune yakaderera-giredhi ores. Nekudaro, iyo inosanganisirwa muchetura uye zvinodiwa zvekutonga zvinoda kubata nekuchenjerera uye kuteedzera kwakasimba kuti ive nechokwadi chekuchengetedza uye kwakachengeteka mabasa emigodhi.