Sodium Cyanide: Maɓalli don Ƙarfafawa da Ƙarfin Ƙarfin Haɓakar Zinare Mai Raɗaɗi

A fannin hakar gwal, hakar gwal daga ma'adinan da ba su da daraja a koyaushe ya kasance wani aiki mai wahala. Duk da haka, tare da zuwan sabbin fasahohi da hanyoyin, ya zama mafi dacewa da kuma tattalin arziki. Ɗayan irin wannan hanyar da ta kawo sauyi game da hakar gwal daga ƙananan ma'adinai shine amfani da Sodium cyanide. Wannan labarin ya zurfafa cikin yadda sodium Cyanide yana ba da damar hakowa mai inganci da tsadar gaske daga ma'aunin zinare marasa daraja.

Hanyar Gargajiya: Cyanidation

The Cyanidation hanyar, wanda ya haɗa da amfani sodium cyanide domin Hakar zinare, yana da dogon tarihi. Tun lokacin da aka fara aikace-aikacensa na farko a cikin 1887 don hako zinari da azurfa, an karbe shi sosai a cikin masana'antar zinare ta duniya kuma har yanzu tana da matsayi na yau da kullun. Wannan tsari yana da sauƙin sauƙi. Game da ma'adinan zinare marasa daraja, tsarin gaba ɗaya shine fara shirya ma'adinan. Ana murƙushe ma'adinan sau da yawa zuwa girman da ya dace don ƙara yawan sararin samaniya, wanda ke sauƙaƙe amsawa tare da cyanide mafita. Sa'an nan, an gabatar da maganin cyanide, yawanci sodium cyanide narkar da cikin ruwa. Zinariya a cikin ma'adinan yana amsawa tare da ions cyanide a gaban iskar oxygen don samar da rukunin cyanide na gwal mai narkewa. Misali, ana iya sauƙaƙa halayen sinadaran kamar haka: 4Au + 8NaCN + O₂ + 2H₂O → 4Na[Au(CN)₂] + 4NaOH. Wannan yana ba da damar gwal don narkar da shi kuma a raba shi daga matrix na ma'adinai.

Fa'idodin Amfani da Sodium Cyanide a cikin Haɗin Zinare Ƙarancin Matsayi

High efficiency

Sodium cyanide yana da babban alaƙa ga zinari. Yana iya zaɓin narkar da zinariya daga ma'adanin, koda lokacin da abun cikin zinariya ya yi ƙasa. Wannan zaɓin yana da mahimmanci yayin da yake ba da izinin hakar zinari daga ma'adanai inda sauran ma'adanai za su kasance da yawa da yawa. Idan aka kwatanta da wasu hanyoyin hakar, cyanidation tare da sodium cyanide na iya samun ingantacciyar ƙimar dawo da gwal. A lokuta da yawa, dangane da yanayin ma'adinan, ana iya samun ƙimar dawowar 50 - 80% ko ma sama da 90%. Wannan babban inganci yana nufin cewa za a iya fitar da ƙarin zinari daga adadi ɗaya na ƙaramar ma'adinai, yana haɓaka ƙimar albarkatun.

Kudin-Inganci

Ɗaya daga cikin mahimman fa'idodin amfani da sodium cyanide don ƙananan haƙar gwal shine ingancin sa. Gabaɗayan tsari na cyanidation yana da sauƙin kai tsaye. Ba ya buƙatar kayan aiki masu sarƙaƙƙiya da tsada idan aka kwatanta da wasu dabarun hakar madadin. Alal misali, a cikin aikin tulin tsibi, wanda hanya ce ta gama gari don sarrafa ma'adinan zinare marasa daraja ta amfani da sodium cyanide, babban abin da ake buƙata shine kushin leaching mai dacewa, tsarin fesa maganin cyanide, da kayan aikin tattara maganin ciki. Wannan sauƙi a cikin kayan aiki da tsari yana rage duka zuba jari na farko da kuma farashin aiki. Bugu da ƙari, ƙarancin farashi na sodium cyanide kanta, idan aka kwatanta da wasu na'urori na musamman na hakar, yana ƙara ba da gudummawa ga ƙimar tsarin.

Kalubale da Magani a Amfani da Sodium Cyanide

Tsangwamar Arsenic

A cikin aikin gasa da cyaniding na tattara hankalin zinari, arsenic shine babban abin da zai iya shafar adadin leaching cyanide na zinari da azurfa. Lokacin da abun ciki na arsenic a cikin tarin zinare ya ƙaru, ƙimar haƙar zinare da azurfa ta amfani da sodium cyanide a hankali yana raguwa. Duk da haka, an samar da mafita don magance wannan batu. Ƙara 4% zuwa 5% sodium sulfate zuwa samfurin tama yayin gasasshen zai iya haɓaka ƙimar leaching cyanide na zinari da azurfa yadda ya kamata a cikin tarin zinari mai arsenic. Wannan gyare-gyare a cikin tsarin gasasshen yana taimakawa wajen rage mummunan tasirin arsenic da kuma kula da ingantaccen tsarin cyanidation.

Damuwar Muhalli da Tsaro

Cyanide abu ne mai haɗari, kuma amfaninsa da jigilarsa suna da matuƙar buƙata. Ruwan sharar sodium cyanide na iya haifar da gurɓatawa daban-daban ga muhalli. Don magance matsalolin muhalli da suka shafi ruwan sharar sodium cyanide, ana iya amfani da maganin hydrogen peroxide. Wannan tsari ne na oxidation da lalata. Lokacin da hydrogen peroxide ya haɗu da ruwan sharar sodium cyanide, sodium biCarbonAna samar da iskar gas ta ate da ammonia. Wannan hanyar tana da fa'idodi masu yawa na inganci da kuma tattalin arziki wajen magance sharar cyanide.

Dangane da aminci, ana aiwatar da tsauraran ka'idoji. Sodium cyanide wani sinadari ne na musamman wanda ke buƙatar lasisin shigo da kaya da takardar shaidar mai amfani kafin shigo da shi. Lokacin ajiya da amfani, bai kamata a sanya shi tare da acid, nitrites, nitrates, da sauran abubuwa ba, saboda fallasa shi zuwa yanayin acidic zai rage ingancin samfurin da tasirin amfani. Ya kamata a adana shi a cikin wuri mai bushewa da bushewa, zai fi dacewa a cikin ɗakin ajiya na musamman ko kuma na musamman mai kulle biyu. Dubawa na yau da kullun, kulawa, da kula da yanayin zafi da zafi na wurin ajiya suna da mahimmanci, tare da matakan da suka dace na samun iska ko rage humidity. Ya kamata kuma a samar da wurin ajiyar wuri da abin rufe fuska na gas, abin rufe fuska, kayan kariya na mutum, da kayan kashe gobara.

Nazarin Harka na Sodium Cyanide a cikin Haɓakar Zinare Ƙarancin Matsayi

Zijin Mining's Application in Zijinshan Gold Mining

Zijin Mining ya yi nasarar amfani da hanyar cyanidation ta amfani da sodium cyanide a cikin Zijinshan Gold Mining. Ta hanyar fesa maganin cyanide (sodium cyanide solution) akan tarkacen zinare marasa daraja, sun sami damar fitar da gwal a farashi mai rahusa. Wannan aikace-aikacen ba wai kawai ya kunna yuwuwar haƙar ma'adinan gwal a yankin ba amma kuma ya ba Zijin Mining babban fa'ida mai tsada a kasuwar gwal. Nasarar aiwatar da su yana nuna tasiri mai amfani na yin amfani da sodium cyanide don ƙananan haɓakar zinare a cikin aikin hakar ma'adinai na gaske.

Yaɗuwar Cyanidation na Duniya a Ma'adinan Zinare Ƙarancin Matsayi

A duk faɗin duniya, yawancin ma'adinan zinare marasa daraja sun dogara da cyanidation tare da sodium cyanide. A yankuna irin su Arewacin Amurka, Amurka ta Kudu, da Ostiraliya, inda akwai ɗimbin tanadi na albarkatun zinare marasa daraja, cyanidation hanya ce da aka saba amfani da ita. Waɗannan ma'adanai sun inganta tsarin don daidaita inganci, farashi, da matsalolin muhalli da aminci. Suna ci gaba da saka hannun jari a cikin bincike da haɓakawa don haɓaka tsarin haɓakar cyanidation, kamar ingantaccen sarrafa ƙwayar cyanide, ingantattun dabarun shirye-shiryen tama, da hanyoyin ci gaba don magance sharar cyanide, duk da nufin haɓaka fa'idodin yin amfani da sodium cyanide don ƙarancin haɓakar zinare.

Kammalawa

Sodium cyanide yana taka muhimmiyar rawa wajen samar da gwal mai inganci da tsadar gaske daga ma'adanai masu ƙarancin daraja. Duk da ƙalubalen da ke tattare da amfani da shi, irin su tsangwama na arsenic da damuwa na muhalli da aminci, tare da ingantattun hanyoyin fasaha da ingantaccen tsaro da kula da muhalli, tsarin cyanidation ya kasance ɗaya daga cikin mafi kyawun zaɓuɓɓuka don ƙananan ma'adinai na zinariya. Yayin da bukatar zinare ke ci gaba da girma kuma adadin zinare masu daraja ya yi karanci, mahimmancin yin amfani da sinadarin sodium cyanide don buɗe darajar ma'aunin gwal mai ƙarancin ƙima zai ƙaru kawai. Kamfanonin hakar ma'adinai da masu bincike za su iya ci gaba da haɓakawa a wannan yanki don ƙara haɓaka inganci da dorewar aikin hakar gwal ta amfani da sodium cyanide.