Inganta Ingantacciyar Sodium Cyanide a cikin Leaching Vat

Gabatarwa

Fitar da ma'adanin ruwa muhimmin tsari ne a masana'antar haƙar ma'adinai, musamman don fitar da karafa masu daraja kamar zinariya daga ƙananan ma'adanai. Sodium cyanide yana taka muhimmiyar rawa a cikin wannan tsari domin yana samar da wani abu mai sarkakiya da zinariya, wanda ke ba da damar narkewa da kuma murmurewa daga baya. Duk da haka, ingancin sodium cyanide a cikin fitar da ma'adanin ruwa na iya shafar dalilai da yawa. Inganta waɗannan abubuwan yana da mahimmanci ba wai kawai don haɓaka saurin dawo da ƙarfe ba, har ma don rage farashi da rage tasirin muhalli da ke da alaƙa da amfani da wannan sinadari mai guba.

Matsayin Sodium Cyanide a cikin Vat Leaching

A cikin fitar da ruwa daga cikin ma'adanin ruwa, Sodium Cyanide yana hulɗa da zinariya a gaban iskar oxygen da ruwa. Ion cyanide da ke cikin Sodium cyanide suna haɗuwa da atom ɗin zinariya, suna canza zinare zuwa wani mahaɗin da ke narkewa. Wannan nau'in zinare mai narkewa daga ma'adanin ma'adanin kuma ana iya ƙara sarrafa shi don samun zinare tsantsa.

Abubuwan Da Suka Shafi Ingantacciyar Sodium Cyanide a cikin Leaching Vat

Halayen Ore

1. Girman Barbashi : Girman barbashi na ma'adinan yana da tasiri sosai ga ingancin fitar da ruwa. Ƙananan barbashi suna samar da babban yanki na saman don amsawar tsakanin sodium cyanide da ma'adanai masu ɗauke da zinariya. Misali, idan ba a niƙa ma'adinan da kyau ba, maganin cyanide bazai iya shiga yadda ya kamata ba, yana barin adadi mai yawa na zinariya ba tare da amsawa ba. Bincike ya nuna cewa rage girman barbashi na ma'adinan da ke ɗauke da zinariya daga ƙaramin yanki zuwa mafi ƙanƙanta na iya ƙara yawan narkewar zinariya. Ƙananan barbashi masu ƙanƙanta suna ba da damar narkewa cikin sauri da cikakken bayani idan aka kwatanta da ƙananan barbashi masu ƙanƙanta.

2. Ilimin Ma'adinai : Kasancewar wasu ma'adanai na iya haɓaka ko hana aikin fitar da ruwa. Ma'adanai kamar pyrite da arsenopyrite na iya cinye iskar oxygen da cyanide, wanda ke rage samuwar waɗannan abubuwan haɗin don amsawar zinare da cyanide. A gefe guda kuma, wasu ma'adanai na gangue na iya samun tasirin catalytic, wanda ke haɓaka narkewar zinare. Bugu da ƙari, samuwar zinare a cikin ma'adinan, ko yana niƙa kyauta (wanda aka 'yantar da shi cikin sauƙi) ko kuma an lulluɓe shi a cikin wasu ma'adanai, yana shafar damar da zinare ke samu ga maganin cyanide. Misali, zinare da aka saka a cikin ma'adanai na sulfide na iya buƙatar magani kafin a fara amfani da shi, kamar gasawa ko bio-oxyde, don fallasa zinare da inganta ingancin fitar da ruwa.

Yanayin Tsari

1. Tsarin Cyanide : Kula da ingantaccen tsarin cyanide yana da matuƙar muhimmanci. Ƙarancin yawan cyanide ba zai iya samar da isassun ions na cyanide don yin aiki tare da duk zinaren da ake da su ba, wanda hakan ke haifar da rashin cikakken cirewa. Akasin haka, yawan yawan cyanide na iya haifar da samuwar samfuran da ba a so, kamar ƙarfe - hadaddun cyanide tare da wasu ƙarfe marasa mahimmanci a cikin ma'adinan, kuma yana ƙara farashi da haɗarin muhalli. Mafi kyawun yawan cyanide sau da yawa ya bambanta dangane da nau'in ma'adinan da kasancewar ma'adanai masu shiga tsakani. Gabaɗaya, ga ma'adinan zinariya na yau da kullun, ana amfani da nau'ikan yawan cyanide daban-daban a matakai daban-daban na cirewa don daidaita inganci da farashi.

2. Kula da pH : pH na maganin leaching yana da tasiri mai mahimmanci akan daidaiton cyanide da kuma amsawar leaching. Cyanide ba shi da ƙarfi a cikin yanayin acidic kuma yana iya ruɓewa don samar da iskar hydrogen cyanide mai guba sosai. Don hana wannan, yawanci ana kiyaye pH na maganin leaching a cikin kewayon 10-11 ta amfani da lemun tsami ko wasu abubuwan haɗin alkaline. A wannan kewayon pH, cyanide yana kasancewa a cikin siffar ionic, yana sauƙaƙa samuwar hadaddun zinare - cyanide. Bugu da ƙari, yanayin alkaline kuma yana iya taimakawa wajen narkar da wasu ma'adanai waɗanda zasu iya tsoma baki tare da tsarin leaching.

3. Zafin Jiki : Yawan amsawar cyanidation ya dogara ne da yanayin zafi. Yawan zafin jiki gabaɗaya yana ƙara yawan amsawa, amma a aikace, kiyaye yanayin zafi mai yawa na iya zama mai tsada kuma yana iya haifar da ƙaruwar ruɓewar cyanide. A cikin yanayi mai sanyi, zafin da ke zubar da ruwa na iya zama abin da ke iyakancewa. Kasa da 10 °C, ƙimar narkewar zinare na raguwa sosai. Wasu ma'adanai a Kanada sun yi amfani da zafin sharar gida don dumama maganin cire ruwa, wanda ba wai kawai yana taimakawa wajen karya iyakar zafin jiki ba har ma yana tsawaita lokacin cire ruwa.

4. Samuwar Iskar Oxygen : Iskar Oxygen muhimmin abu ne a cikin tsarin cyanidation domin yana oxidize zinariya don samar da hadaddun zinare mai narkewa - cyanide. Isasshen wadatar iskar oxygen na iya haɓaka yawan leaching. Shigar da na'urori waɗanda ke sauƙaƙa shigar iskar oxygen, kamar tsarin allurar iska, yayin gina magudanar ruwa na iya inganta iskar oxygen da ke shiga cikin cakuda ruwan ma'adinai da kuma ƙara saurin leaching. Binciken da Cibiyar Hazen ta yi a Amurka ya nuna cewa ƙara yawan iskar oxygen a cikin tarin ma'adinan (wanda za a iya amfani da shi a matsayin leaching na ma'adinan ruwa) ba wai kawai zai iya rage zagayowar leaching ba har ma zai iya ƙara yawan leaching na zinariya.

Lokacin Leaching

Lokacin fitar da ruwa wani muhimmin abu ne. Ana buƙatar isasshen lokaci don cyanide ya yi aiki da duk zinaren da ake da shi. Duk da haka, tsawon lokacin fitar da ruwa na iya zama mara tattalin arziki kuma yana iya haifar da samuwar ƙarin samfuran da aka samo. Lokacin fitar da ruwa mafi kyau ya dogara da abubuwa kamar girman barbashi na ma'adinai, yawan cyanide, da zafin jiki. Misali, a wasu lokuta inda ma'adinin ya yi laushi kuma yanayin aikin ya inganta sosai, lokacin fitar da ruwa na iya raguwa sosai idan aka kwatanta da ma'adinan da suka yi kauri ko kuma yanayin da bai dace ba.

Dabarun ingantawa

Maganin Kaya

1. Niƙawa da Niƙawa : Domin tabbatar da girman ƙwayoyin da suka dace, ya kamata a niƙa ma'adinan a hankali a niƙa. Amfani da kayan aikin niƙawa da niƙa na zamani zai iya taimakawa wajen samun daidaiton girman ƙwayoyin, wanda hakan zai ƙara girman farfajiyar da ake da shi don amsawar cyanide - zinare.

2. Maganin Kafin Ma'adanai Masu Rage Ruwa : Ga ma'adanai masu ratsewa waɗanda ke ɗauke da zinare da aka lulluɓe a cikin sulfide ko wasu ma'adanai, ana iya amfani da hanyoyin kafin magani kamar gasawa, bio-oxidation, ko matsi oxidation. Gasawa na iya wargaza ma'adanai na sulfide, yana fitar da zinaren da aka makale kuma yana sa ya fi sauƙin samun maganin cyanide. Bio-oxidation yana amfani da ƙananan halittu don oxidize ma'adanai na sulfide, madadin gasawa a wasu lokuta.

Gudanar da Gudanarwa

1. Kulawa da Daidaita Yawan Cyanide : Ci gaba da lura da yawan cyanide a cikin maganin leaching ta amfani da dabarun nazari kamar titration ko electrodes na ion. Dangane da sakamakon sa ido, daidaita yawan cyanide don kiyaye mafi kyawun yawan a duk lokacin leaching.

2. Kulawa da Daidaita pH : A auna pH na maganin fitar da ruwa akai-akai ta amfani da mitar pH sannan a ƙara lemun tsami ko wasu abubuwan da ke ɗauke da sinadarin alkaline idan ana buƙata don kiyaye pH a cikin mafi kyawun kewayon 10-11.

3. Kula da Zafin Jiki : A yanayin da zafin jiki ke da iyaka, yi la'akari da amfani da tsarin dumama ko sanyaya don kiyaye yanayin zafi da ya dace don amsawar fitar da ruwa. Wannan na iya zama da mahimmanci musamman a yankunan da ke da yanayi mai tsauri.

4. Inganta Samar da Iskar Oxygen : Tabbatar da isasshen iskar oxygen a tsarin fitar da iskar. Ana iya cimma hakan ta hanyar amfani da tsarin allurar iska mai inganci ko kuma ta hanyar ƙara sinadarai kamar hydrogen peroxide a cikin maganin fitar da iskar oxygen. Duk da haka, ya kamata a yi taka tsantsan lokacin amfani da hydrogen peroxide domin yana iya yin illa ga cyanide idan ba a sarrafa shi yadda ya kamata ba.

Ƙarin Taimakon Leaching

Ana iya ƙara kayan aikin leaching zuwa slurry leaching cyanide don haɓaka inganci. Abubuwan taimakon leaching na yau da kullun sun haɗa da abubuwan da ke haifar da iskar oxygen, ingantattun abubuwan leaching, da abubuwan jika. Alal misali, ƙara wani oxygen - dauke da oxidizing wakili ga cyanide leaching tsari zai iya ƙara m aiki oxygen a cikin slurry, inganta leaching yadda ya dace. Ma'aikatan jika na iya taimakawa maganin cyanide mafi kyau su shiga barbashi na ma'adinai, musamman ma a cikin yanayin hydrophobic ores.

Kammalawa

Inganta ingancin sodium cyanide a cikin vat leaching aiki ne mai rikitarwa amma mai mahimmanci a cikin masana'antar ma'adinai. Ta hanyar yin la'akari da hankali da sarrafa abubuwa irin su halaye na ma'adinai, yanayin tsari, da lokacin leaching, da kuma aiwatar da dabarun ingantawa da suka dace, yana yiwuwa a inganta farfadowa na karafa masu mahimmanci, rage yawan amfani da sinadarai, da kuma rage haɗarin muhalli da ke hade da amfani da sodium cyanide. Ci gaba da bincike da ƙirƙira a cikin wannan yanki suna da mahimmanci don tabbatar da aikin leaching na vat ɗin ya zama mai dorewa da tattalin arziki a cikin dogon lokaci.