Cyanidation Maitiro Kushandisa uye Tsvagiridzo yeCopper-Inotakura Goridhe Ores

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Munzvimbo yekuchera goridhe, the cyanidation nzira yakagara iri ibwe rekona nekuda kwekusarudza kwayo uye kugona kwayo. Nekudaro, kana uchibata nendarira-ine goridhe ores, kuoma kweiyo mineralogy kunopa akasiyana matambudziko. Sezvo mhangura, sirivha, uye goridhe orebody mamakisi epasi rose achiramba achidzikira, uye iyo mineralogy yakatenderedza ichiwedzera kusiyanisa, zvakakosha kukwirisa maitiro ecyanidation kune aya akaomarara ores. Iyi blog positi inoongorora mashandisirwo uye tsvakiridzo yecyanidation yegoridhe-inotakura goridhe ores, iine chinangwa chekupa manzwisisiro munzira dzinoshanda dzekurapa.

Matambudziko muCyanidating Mhangura-Inotakura Goridhe Ores

Mineralogical Complexity

Mhangura-inotakura goridhe ores kazhinji ine akasiyana emaminerari, kusanganisira simbi sulfide zvicherwa zvakaita sepyrite, pyrrhotite, chalcopyrite, uye sphalerite. Pamusoro pezvo, vanogona kunge vaine maion akaita seFe²⁺, Cu²⁺, Zn²⁺, S²⁻, uye Fe³⁺ mune ore pulp. Munguva yecyanidation leaching process, izvi zvikamu zvinogona kutora huwandu hwakawanda hwe cyanide uye oksijeni yakanyungudika. Semuyenzaniso, kuvepo kweCu²⁺ kunogona kuita necyanide, ichigadzira akatsiga macomplexes, nekudaro ichidzikisa iyo yemahara cyanide inowanikwa mukunyungudika kwegoridhe. Izvi hazvingowedzere kushandiswa kwecyanide asi zvakare zvinodzikisira kushanda kwegoridhe leaching.

Cyanide Kushandiswa

Iyo yakakwira mhangura yemukati mune ores inotungamira kune yakawandisa kushandiswa kwecyanide. Iyo mhangura inonyungudika mu leach liquors inopindirana ne cyanide, zvichikonzera zvisingagamuchirwi mari yekushandisa. Mune zvimwe zviitiko, mamakisi emhangura mune zvekudya anogona kuchinja nekufamba kwenguva, sezvinoonekwa mumugodhi weAnglo Asian Mining weGeda Bek muAzerbaijan. Mushure mekutanga kweiyo agitation leach uye resin - mu - pulp goridhe ore processing plant, yakakwira mhangura mamakisi kupfuura zvaitarisirwa zvakakonzera kuwedzera kudyiwa kwecyanide, zvisinei nekugona kwechirimwa kubata yakakwira mhangura muzvinwiwa zveleach pasina kukanganisa kugadzirwa kwegoridhe zvakanyanya.

Kushandiswa kweCyanidation Process yeCopper-Bearing Gold Ores

Ammonia - Inobatsirwa Cyanide Leaching

Imwe nzira yekugadzirisa matambudziko ekuita cyanidating ores yegoridhe ine mhangura ndeyekushandiswa kweammonia - inobatsira cyanide leaching. Mumugodhi weGeda Bek, ammonia yakaunzwa mudunhu reLeaching kuderedza kushandiswa kwecyanide. Iyi nzira yakaonekwa ichishanda mukuchenura kuchekwa kwemhangura nehafu, zvichizotungamira mukudzikiswa kukuru kwekushandiswa kwecyanide mune yakazara-scale leaching system. Kushandiswa kweammonia mumhangura - goridhe cyanide leach masisitimu ane nhoroondo refu, kubva muna 1902 apo Hunt akapa mvumo yekushandiswa kwayo kuderedza kushandiswa kwecyanide panguva yekudonha kwegoridhe kubva kumhangura - inotakura ores. Iyo ammonia - cyanide process yakashandiswa mukutengesa kurapa miswe kubva kuComstock Lode muNevada uye cupriferous gold ore kuDale, California.

Kugadziriswa kweOre Pulp

Preatment of the ore pulp nderimwe danho rakakosha mukuita cyanidation yemhangura-inobereka goridhe ores. Alkaline pretreatment inogona kuderedza kushandiswa kwecyanide uye kugadzirisa cyanide leaching rate yegoridhe. Kana iyo ore pulp isina kudzoserwa, iyo yemahara CN⁻ mairi ndiyo idiki, zvichiratidza kuti CN⁻ inodyiwa neFe²⁺, Zn²⁺, S²⁻ nemamwe maion, uye zvirimo zveCu²⁺, Fe³⁺, Zn²⁺ ions zvakare zvakaderera. Mushure mekutanga kurapwa, iyo yemahara CN⁻ mune ore pulp yakakwira, uye maCu²⁺, Fe³⁺, Zn²⁺ ions akakwira pane ayo asina preatatment, zvinoreva kuti kushandiswa kwemahara CN⁻ mushure mekutanga kuderedzwa, uye maion anokuvadza haadyiwe neCN⁻. Naizvozvo, alkaline pretreatment pamberi pecyanide leaching inogona kubatsira.

Tsvagiridzo uye Mafambiro Ekuita

Kuvandudzwa kweNew Reagents uye Maitiro

Vatsvagiri vari kugara vachiongorora mareagents matsva uye maitiro ekuvandudza cyanidation process yemhangura-inobereka goridhe ores. Semuenzaniso, kushandiswa kweanobatsira oxidants inzvimbo yekutarisa. Kuwedzera oxidants (seyakachena okisijeni kana mamwe maokisi) panguva yekuita leaching inogona kuwedzera iyo "inoshanda inoshanda okisijeni" zvirimo mune ore pulp, kunatsiridza cyanidation leaching nharaunda, mhanyisa kumhanya kweleaching, kupfupisa nguva yekudonha, uye kuderedza kushandiswa kwecyanide. Kushandiswa kweanobatsira oxidants kwave kusimudzirwa zvakanyanya pasirese seyakanyanya tekinoroji yekugonesa maitiro ecyanidation. Pamusoro pezvo, kuvandudzwa kwevatsva vanoregedza, senge thiosulfate, iyo yakaratidza kugona mukubvisa goridhe kubva kune mhangura-ine goridhe ores ine hunyanzvi hwepamusoro, zvakare igwaro rakakosha rekutsvagisa.

Process Kubatanidza uye Optimization

Kubatanidza maitiro akasiyana-siyana kunogonawo kutungamirira kumigumisiro iri nani. Semuyenzaniso, kubatanidza agitation leach chirimwa nemashandiro aripo murwi leach/ADR/SART, sezvakaitwa mumugodhi weGeda Bek, zvinogona kuita kuti hurongwa hwese hunyatsoshanda. Iyo resin - in - pulp system, uko goridhe rinodzoserwa kubva muleach pulp nekusangana negoridhe - chaiyo ion exchange resin, chikamu chakakosha chekubatanidzwa uku. Nekugadzirisa kusanganiswa kwemaitiro aya uye zvishandiso, kuita kwese kweiyo cyanidation process yemhangura-inotakura goridhe ores inogona kuvandudzwa.

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Iyo cyanidation process yendarira ine goridhe ores inoramba iri nzira yakakosha muindasitiri yezvicherwa zvisinei nematambudziko ayo. Kuburikidza nemaitiro akadai seammonia - yakabatsira cyanide leaching, ore pulp pretreatment, uye kuenderera mberi nekutsvagisa uye kuvandudzwa kwemareagents matsva nekubatanidzwa kwemaitiro, kushanda nesimba uye kubudirira kwehupfumi kweiyo cyanidation process inogona kuvandudzwa. Sezvo indasitiri yezvicherwa ichienderera mberi nekutarisana nematambudziko ekudzikira kwemagiredhi eore uye yakaoma mineralogy, kuenderera mberi hunyanzvi hwekuita cyanidation yematombo egoridhe ane mhangura kuchave kwakakosha kuve nechokwadi chekugadzirwa kwegoridhe.