Basa reHydrogen Peroxide muSodium Cyanide Leaching process

ziviso

Mumunda wekuchera goridhe uye imwe simbi - kudzoreredza maitiro, cyanide leaching, kunyanya ne sodium cyanide, yave iri nzira inoshandiswa nevakawanda kwemakore anopfuura zana. Iyi nzira, iyo inogadzira simbi inonyungudika - cyanide complexes, inoshanda asi inotarisana nematambudziko akati wandei. Imwe nyaya hombe imhanyiro inononoka kuita uye kudiwa kweokisijeni yakakwana yekunyungudutsa simbi dzakaita segoridhe. Apa ndipo hydrogen peroxide (H₂O₂) yakabuda sechinhu chinovimbisa chekuwedzera kuvandudza cyanide leaching process.

Izvo zvakakosha zveCyanide Leaching

Cyanide leaching inoshanda nekuti cyanide ions inogona kuita nesimbi kuti iumbe yakagadzika uye inonyungudika. Kana zvasvika pakubvisa goridhe, okisijeni inoita basa rakakosha semumiriri weoxidizing. Inobatsira kushandura goridhe kuita fomu rinogona kusanganiswa neiyo cyanide ions, zvichikonzera kunyungudika kwakaoma kunogona kugadziridzwa zvakare kuti uwane goridhe. Nekudaro, mune akawanda ores, iyo okisijeni inongowanikwa kubva kumhepo kazhinji haina kukwana. Kushaikwa uku kunotungamirira kumaitiro anononoka uye kubviswa kwesimbi kusina kukwana.

Iyo Hydrogen Peroxide Inobatsira sei muCyanide Leaching

1. Oxygen Supply

Hydrogen peroxide inhengo ine oxidizing ine simba. Kana yawedzerwa kune cyanide leaching solution, inoputsika uye inobudisa oxygen. Iyi yekuwedzera okisijeni inopa zvakanyanya kuwedzera oxidation yesimbi panguva yekuita leaching. Mune zvicherwa zvine zvicherwa zve sulfide, semuenzaniso, kuokisiswa kweaya sulfide neokisijeni kwakakosha pakusunungura goridhe mukati. Okisijeni inoburitswa nehydrogen peroxide inokwanisa kukurumidzira danho reoxidation iyi, zvichiita kuti zvive nyore kuti cyanide iite negoridhe gare gare.

2. Kumhanyisa Mwero weLeaching

Zvidzidzo zvakaratidza kuti hydrogen peroxide inogona kuwedzera kumhanya kwese kweiyo cyanide leaching process. Haingopi oxygen yakawedzerwa; inobatanidzwawo mukuita kwemakemikari kunoputsa zvidimbu zvekudzivirira pamusoro pezvikamu zve ore. Dzimwe nguva, simbi sulfides kana zvimwe zvicherwa zvinoumba danda pagoridhe - rinotakura zvimedu, izvo zvinomisa cyanide kusvika kune goridhe. Hydrogen peroxide inogona kuita nezvikamu izvi, kungave nekuaisa oxidizing kana nekuaparadzanisa nekuita kwemahara radicals anogadzirwa panguva yekuora kwayo. Izvi zvinobvumira cyanide ions kuti iwane goridhe zviri nyore, nokudaro zvichiwedzera mwero wekunyungudutswa kwegoridhe.

3. Kuderedza Kushandiswa kweCyanide

Muchinyakare cyanide leaching, yakawanda cyanide inoshandiswa kwete chete mukuita negoridhe asiwo mukuita kwepadivi nemamwe maion esimbi aripo muore, semhangura, zingi, nesimbi. Aya maitiro eparutivi anoderedza kushanda kwegoridhe - cyanide reaction uye kuwedzera mutengo wakazara weiyo leaching process. Hydrogen peroxide inogona kubatsira kuderedza kushandiswa kwecyanide nenzira mbiri. Kutanga, nekusimudzira oxidation yegoridhe, inosimudzira kuumbwa kwegoridhe - cyanide complex nekukurumidza, ichisiya nguva shoma yekuti cyanide iite pamwe nemamwe masimbi. Chechipiri, hydrogen peroxide inogona kushandura chimiro chemamwe ayoni esimbi anopindira kuitira kuti asaite zvishoma necyanide. Semuenzaniso, inogona kushandura ferrous ions kuita ferric ions. Ferric ions inogadzira macomplexes asina kugadzikana ane cyanide, achidzikisa huwandu hwe cyanide hwakaraswa mukusabereka mativi maitiro.

Nyaya Dzidzo uye Uchapupu Hwekuedza

Kuedza kwakawanda murabhoritari uye kuyedzwa kwemaindasitiri kwakaratidza kushanda kwehydrogen peroxide mucyanide leaching. Mune imwe ongororo yezvakaoma - kugadzira goridhe ore, kuwedzera hydrogen peroxide kune cyanide leaching mhinduro yakawedzera goridhe leaching mwero ne20 - 30% zvichienzaniswa neyekare cyanide leaching ine mhepo chete. Nguva yekuvhara yakaderedzwawo zvakanyanya, kubva pamazuva akati wandei kusvika kumaawa mashoma.

Mumaindasitiri - chiyero chemugodhi wegoridhe, kushandisa hydrogen peroxide mucyanide leaching process yakakonzera kudzikiswa ne15%. kushandiswa kwecyanide vachiri kuchengetedza yakakwira goridhe kudzoreredza mwero. Izvi hazvina kungodzikisa mitengo yekushandisa ine chekuita nekutenga cyanide asi zvakare yakaderedza njodzi dzezvakatipoteredza dzine chekuita nekushandiswa nekurasa cyanide.

Zvinotarisirwa Kushandisa Hydrogen Peroxide

1. Kuisa pfungwa

Huwandu hwakakodzera hwehydrogen peroxide yekuwedzera kune cyanide leaching mhinduro inoenderana nezvinhu zvakasiyana, kusanganisira mhando yematombo, kuwanda kwecyanide yatove mumhinduro, uye kuvapo kwemamwe mamineral. Kazhinji, kuisa pakati pe0.1 - 1% (nehuwandu) kwakawanikwa kushanda zvakanaka mumamiriro mazhinji. Asi kana iyo yekumisikidza yakawandisa, inogona kukonzera pamusoro - oxidation yesimbi, kusanganisira goridhe. Uku kuwedzeredza-oxidation kunogona kugadzira makomisheni egoridhe asinganyanyike uye kuderedza huwandu hwegoridhe rinogona kudzoserwa.

2. pH Kudzora

Iyo pH nhanho yemhinduro yekuchenesa yakakosha kana uchishandisa hydrogen peroxide. Cyanide leaching inowanzoitika pane yakakwirira pH (yakakomberedza 9 - 12) kudzivirira kuumbwa kwechepfu yehydrogen cyanide gasi. Hydrogen peroxide inonyanya kugadzikana pane yakakwirira pH tsika. Nekudaro, kana iyo pH yakanyanya kukwirisa, inogona kuderedza kushanda kwehydrogen peroxide seanoxidizing agent. Saka, kungwarira kudzora pH kunodiwa kuti uve nechokwadi chekuti zvese cyanide nehydrogen peroxide zvinoshanda nemazvo muleaching system.

3. Kudzivirirwa

Hydrogen peroxide ioxidizing agent yakasimba uye inogona kuva nengozi kana ikasabatwa nemazvo. Inogona kutsamwisa ganda nemaziso, uye mumhando dzakadzika, inogona kunyange kuputika. Paunenge uchishandisa hydrogen peroxide mu cyanide leaching, matanho ekuchengetedza anofanirwa kuitwa. Izvi zvinosanganisira kushandisa midziyo yekuzvidzivirira, kuchengeta nekubata kemikari zvakanaka.

mhedziso

Hydrogen peroxide yakaratidza kugona kukuru sekuwedzera mukati Sodium Cyanide leaching process. Nekupa yakawedzera okisijeni, kumhanyisa mwero weleaching, uye kudzikisira kushandiswa kwecyanide, inogona kusimudzira kugona uye kugona kwehupfumi hwekubvisa simbi, kunyanya yegoridhe. Nekudaro, senge chero makemikari maitiro, kwakaringana optimization uye kunyatsoomerera kune ekuchengetedza mapuroteni kwakakosha kuti ibudirire kuita. Sezvo indasitiri yezvicherwa ichiramba ichitsvaga nzira dzakasimba uye dzakasimba dzekuchera, kushandiswa kwehydrogen peroxide mucyanide leaching kungangonyanya kukosha mune ramangwana.