Aikace-aikacen Sodium Cyanide a cikin Masana'antar Karfe

Gabatarwa

sodium cyanide (NaCN), wani fili na inorganic, yana taka muhimmiyar rawa a cikin Masana'antar ƙarfe. Duk da yanayinsa mai guba sosai, abubuwan sinadarai na musamman sun sa ya zama dole a cikin matakai da yawa na ƙarfe, musamman wajen hako karafa masu daraja. Wannan labarin yana zurfafa cikin aikace-aikacen daban-daban na Sodium cyanide a cikin ƙarfe, bincika hanyoyin aikinsa, fa'idodi, da ƙalubale masu alaƙa.

Abubuwan Sinadarai na Sodium Cyanide masu dacewa da ƙarfe

Sodium cyanide fari ne, mai ƙarfi mai narkewa da ruwa. A cikin maganin ruwa mai ruwa, yana rarraba cikin ions sodium (Na⁺) da cyanide ions (CN⁻). Cyanide ion yana da mahimmanci musamman a cikin ƙarfe. Yana da ƙarfi nucleophile, wanda ke nufin yana da alaƙa mai girma don ingantaccen ions ƙarfe. Wannan kadarar tana ba da damar ion cyanide su samar da barga masu ƙarfi tare da ions ƙarfe, halayen da ake amfani da su a aikace-aikacen ƙarfe daban-daban.

Aikace-aikace a cikin Ƙarfe Mai Girma

Hakar Zinariya

1. Tsarin Cyanidation: Mafi sanannun amfani da sodium Cyanide a cikin ƙarfe na ƙarfe yana cikin fitar da zinariya daga ma'adinan sa. The Tsarin Cyanidation, wanda kuma ake kira tsarin MacArthur - Forrest, an haɓaka shi a ƙarshen karni na 19 kuma ya kasance hanya mafi mahimmanci don Hakar zinare duniya. A cikin wannan tsari, niƙaƙƙen taman gwal ana leached tare da dilution bayani na sodium cyanide, yawanci a cikin kewayon 0.05 - 0.2% maida hankali. A lokacin wannan tsari, zinari na ƙarfe yana amsawa tare da oxygen da sodium cyanide a cikin maganin ruwa. Sakamakon abin da ya faru a cikin zinari yana samar da wani hadadden mai narkewa wanda aka sani da sodium aurocyanide. Ana iya raba wannan hadaddun da sauran matrix matrix. Bayan matakin leaching, an dawo da zinare daga maganin. Wata hanya ta gama gari ita ce ta hanyar amfani da carbon da aka kunna, inda aka haɗa haɗin gwal - cyanide a kan carbon (tsari da ake kira carbon - in - pulp ko CIP). Daga baya, zinarin yana ɓata daga carbon kuma ana ƙara tacewa don samun zinari mai tsafta.

2. Abũbuwan amfãni a cikin hakar Zinariya: Sodium cyanide an fi son yin hakar zinare saboda dalilai da yawa. Yana da matukar tasiri wajen narkar da zinare ko da daga ma'adinan da ba su da daraja, wadanda galibi sukan zama al'ada a hako ma'adinai na zamani. Tsarin yana da sauƙin sauƙi kuma mai tsada - tasiri idan aka kwatanta da wasu hanyoyin madadin. Ƙarfinsa na samar da barga masu ƙarfi tare da zinare yana ba da damar ingantaccen rabuwar zinariya daga sauran ma'adanai da ke cikin ma'adinai.

3. Kalubale da Matsalolin Muhalli: Duk da haka, yin amfani da sodium cyanide a cikin hakar zinariya ba tare da kalubale ba. Matsanancin gubarsa shine babban abin damuwa. Idan ba a sarrafa shi da kyau ba, sodium cyanide na iya haifar da babbar barazana ga lafiyar ɗan adam da muhalli. A yayin zubewa ko zubewa, cyanide na iya gurɓata tushen ruwa, ta kashe rayuwar ruwa. Bugu da ƙari, zubar da cyanide - mai ɗauke da wutsiya, wanda har yanzu yana ɗauke da ƙananan ƙwayoyin cyanide da sauran ƙananan karafa, batu ne mai rikitarwa. An sanya tsauraran ƙa'idodin muhalli a ƙasashe da yawa don tabbatar da amintaccen kulawa da zubar da sodium cyanide a cikin masana'antar hakar gwal.

Cire Azurfa

1. Makamantan Cyanide - Tsarin Tsari: Ana kuma amfani da sinadarin sodium cyanide wajen fitar da azurfa daga cikin ma'adinan sa. Ka'idodin sun yi kama da waɗanda ke cikin hakar zinariya. Ana kula da ma'adinan azurfa tare da maganin sodium cyanide, kuma azurfar ta zama hadadden cyanide mai narkewa. Za a iya kara sarrafa hadadden siyanide na azurfa don dawo da tsantsar azurfa. Hanyoyin farfadowa na iya haɗawa da hazo, electrolysis, ko adsorption akan kafofin watsa labarai masu dacewa, kama da hanyoyin da ake amfani da su don dawo da zinariya.

2. Rawar da ke cikin Complex Ores: A yawancin lokuta, ana samun azurfa a cikin hadaddun ma'adanai tare da wasu karafa irin su gubar, zinc, da zinariya. Sodium cyanide zai iya narkar da azurfa da zaɓi, yana ba da damar rabuwa da sauran abubuwan. Wannan yana da mahimmanci musamman wajen haɓaka ƙimar ma'adinan da tabbatar da ingantaccen hakar duk wasu karafa masu mahimmanci.

Aikace-aikace a cikin Metal Plating

1. Girkawa: A cikin masana'antar lantarki, ana amfani da sodium cyanide a cikin plating na karafa irin su jan karfe, azurfa, cadmium, da zinc. A cikin wankan lantarki na tushen cyanide, sodium cyanide yana yin ayyuka da yawa. Yana aiki a matsayin wakili mai rikitarwa, wanda ke taimakawa wajen sarrafa ƙaddamar da ions na ƙarfe a kan substrate. Misali, a cikin wutar lantarki na jan karfe, ions na jan karfe a cikin maganin suna samar da hadaddun ions tare da ion cyanide. Ana rage hadadden ions na jan karfe a cikin cathode (abin da za a sanya shi) don samar da ajiyar tagulla. Kasancewar cyanide a cikin wanka mai ɗorewa zai iya inganta ingancin plating ta hanyar rage yawan adadin ƙarfe, wanda ya haifar da wani nau'i mai mahimmanci da kuma mannewa.

2. Abvantbuwan amfãni a cikin Plating: Cyanide - tushen electroplating wanka yana ba da dama abũbuwan amfãni. Za su iya samar da mafi kyawun ikon jefawa, wanda ke nufin cewa an adana ƙarfe da yawa a kan abubuwa masu siffa. Yin amfani da sodium cyanide kuma na iya haɓaka haske da santsi na Layerd ɗin. Duk da haka, saboda yawan guba na cyanide, ana samun ci gaba mai girma don haɓaka wasu hanyoyin da ba - cyanide electroplating. Amma a wasu aikace-aikacen da ake buƙatar plating mai inganci, kamar a cikin kayan ado da masana'antun lantarki, ana amfani da cyanide - tushen electroplating tare da sodium cyanide har yanzu.

Aikace-aikace a cikin Gyaran Ƙarfe da Tsarkakewa

1. Cire Najasa: Ana iya amfani da sinadarin sodium cyanide wajen tace wasu karafa don cire datti. Misali, a cikin tace nickel, ana iya amfani da cyanide don zaɓen ƙazanta irin su jan karfe da zinc a matsayin rukunin cyanide daban-daban. Wadannan karfe - cyanide complexes na datti za a iya raba su daga maganin nickel ta hanyar tacewa ko wasu dabarun rabuwa, wanda zai haifar da samfurin nickel mafi tsabta.

2. Tsarkake Karfe Masu Tamani: A cikin tsarkakewa na karafa masu daraja kamar zinari da azurfa bayan hakar, ana iya amfani da sodium cyanide a cikin matakan tsaftacewa. Misali, ana iya amfani da shi don narkewa da cire duk wasu ƙazantattun ƙarfe na tushe waɗanda ba su rabu gaba ɗaya ba yayin aikin haƙon farko. Wannan yana taimakawa wajen cimma matsayi mafi girma na tsabta na karafa masu daraja, wanda ke da mahimmanci ga aikace-aikace a cikin kayan ado, kayan lantarki, da kuma zuba jari.

Hanyoyi na gaba da Madadin

1. Nemi Cyanide - Madadin Kyauta: Saboda yawan guba da haɗari na muhalli da ke hade da sodium cyanide, akwai gagarumin ƙoƙarin bincike don samar da hanyoyin da za a iya amfani da su don hakar karfe da sarrafawa. A cikin masana'antar hakar gwal, alal misali, ana bincikar sinadarai da yawa - abubuwan leaching kyauta, irin su thiosulfates, halides, da wasu mahadi. Waɗannan zaɓuɓɓukan suna nufin samar da makamancin haka ko ingantattun ingancin hakar ba tare da alaƙar muhalli da haɗarin haɗari na cyanide ba. Koyaya, da yawa daga cikin waɗannan hanyoyin har yanzu suna cikin gwaji ko farkon matakin kasuwanci kuma suna fuskantar ƙalubale kamar ƙarin farashi, ƙananan zaɓi, ko buƙatun sarrafawa masu rikitarwa.

2. Ingantattun Tsaro da Kula da Muhalli: A halin yanzu, masana'antun ƙarfe suna mai da hankali kan inganta tsaro da kula da muhalli na amfani da sodium cyanide. Wannan ya haɗa da haɓaka ingantaccen tsarin sarrafawa da adanawa, ingantaccen magani na cyanide - mai ɗauke da sharar gida, da ingantaccen saka idanu don tabbatar da bin ka'idodin muhalli.