Muhimmin Matsayin Sodium Cyanide a cikin Tushen Tushen Zinare

A fagen hakar gwal, tulin leaching ya fito a matsayin hanyar da aka amince da ita da tsada - ingantacciyar hanya don hako zinare daga ƙananan ma'adanai. Daga cikin sassa daban-daban na aikin leaching, sodium cyanide yana taka muhimmiyar rawa kuma ba makawa.

Gabatarwa zuwa Tarin Zinare

Leaching tudun gwal wani tsari ne inda ake tara ma'adinan gwal mai ƙarancin daraja ko wutsiya a kan wani katako na musamman. Daga nan sai a yi amfani da ma'adinin da aka yi amfani da shi na maganin leaching, wanda ya ratsa ta cikin tulin takin, yana narkar da zinariyar da ke cikin ma'adinan. Wannan hanya ta dace musamman don magance manyan nau'ikan nau'ikan nau'ikan zinare masu ƙarancin daraja, saboda tana ba da hanya mai sauƙi da tattalin arziƙi don fitar da gwal idan aka kwatanta da mafi rikitarwa da tsadar niƙa da hanyoyin narkewa.

Matsayin Sodium Cyanide a cikin Rushewar Zinariya

Makanishin Magance Sinadarai

sodium cyanide (NaCN) wakili ne mai ƙarfi a ciki tulin zinariya leaching. Makullin tasirinsa ya ta'allaka ne a cikin ikonsa na amsawa da zinare a gaban iskar oxygen. Za a iya sauƙaƙa halayen sinadaran kamar haka: 4Au + 8NaCN+O_{2}+2H_{2}O = 4Na[Au(CN)_{2}]+4NaOH

A cikin wannan martanin, zinari (Au) yana amsawa da sodium Cyanide da oxygen don samar da zinari mai narkewa - hadadden cyanide, sodium dicyanoaurate (Na[Au(CN)_{2}]). Wannan rikice-rikicen halayen yana ba da damar zinari, wanda sau da yawa yana samuwa a cikin wani nau'i mai kyau - hatsi ko rarraba a cikin ma'adinai, don narkar da shi a cikin bayani, don haka yana ba da damar dawo da shi na gaba.

Zaɓin don Zinariya

Daya daga cikin abubuwan ban mamaki na Sodium cyanide a cikin tarin leaching shine zaɓin sa don zinare. Yayin da ma'adinan na iya ƙunsar wasu abubuwa da ma'adanai daban-daban, sodium cyanide zai fi dacewa da amsa da zinariya a ƙarƙashin yanayin da ya dace. Wannan zaɓin yana da mahimmanci yayin da yake ba da izinin hakar zinare tare da ɗan ƙaramin tsangwama daga sauran abubuwan da ke cikin ma'adinan, rage sarƙaƙƙiya da tsadar matakan rabuwa na gaba da tsarkakewa.

Tasiri kan Ingantaccen Leaching Heap

Yawan Leaching

Yin amfani da sodium cyanide yana tasiri sosai ga yawan leaching na zinariya. Matsayin da ya dace na sodium cyanide a cikin maganin leaching zai iya hanzarta rushewar gwal. Gabaɗaya, ƙara yawan adadin sodium cyanide a cikin wani yanki na iya haɓaka ƙimar da aka samar da hadadden zinare-cyanide. Koyaya, wannan ba alaƙar layi ba ce, kuma ƙima mai yawa na iya haifar da wasu batutuwa kamar haɓakar farashin reagent da yuwuwar matsalolin muhalli.

Darajar Farko na Zinariya

Kasancewar sodium cyanide yana da alaƙa kai tsaye da ƙimar dawo da gwal. A cikin tsari mai kyau da aka tsara da sarrafa tsarin leaching, yin amfani da sodium cyanide na iya samun babban adadin dawo da gwal, sau da yawa a cikin kewayon 60 - 90% ko ma mafi girma dangane da yanayin ma'adinai. Ƙididdigar farfadowa mafi girma yana nufin ingantaccen amfani da albarkatun zinariya a cikin ma'adinai, wanda ke da mahimmancin tattalin arziki ga ayyukan hakar ma'adinai.

Haɓaka Amfani da Sodium Cyanide a cikin Heap Leaching

Sarrafa Hankali

Ƙayyade mafi kyawun maida hankali na sodium cyanide a cikin maganin leaching shine muhimmin al'amari na haɓaka leaching. Wannan yana buƙatar yin la'akari da hankali game da abubuwa kamar darajar tama, ma'adinai, da kasancewar wasu abubuwan da zasu iya cinye cyanide. Misali, ma'adinan da ke ɗauke da manyan matakan jan karfe, zinc, ko baƙin ƙarfe sulfide na iya buƙatar mafi girman adadin cyanide don tabbatar da isassun narkar da gwal, saboda waɗannan karafa na iya amsawa da cyanide kuma suna gogayya da zinare don reagent.

Daidaita PH

Hakanan pH na maganin leaching yana taka muhimmiyar rawa a cikin tasirin sodium cyanide. Sodium cyanide ya fi kwanciyar hankali kuma yana amsawa a cikin yanayin alkaline. Yawancin lokaci, pH na maganin leaching a cikin tarin zinari na zinari yana kiyaye shi a cikin kewayon 9 - 11. Daidaita pH ba zai iya inganta zaman lafiyar sodium cyanide kawai ba amma kuma yana tasiri da solubility na sauran karfe - cyanide complexes, don haka inganta zaɓin cirewar zinariya.

La'akarin Muhalli da Tsaro

Guba da Tasirin Muhalli

Sodium cyanide abu ne mai guba sosai. A cikin mahallin tulin zinari, tsauraran matakan kula da muhalli ya zama dole don hana sakinsa cikin muhalli. Zubewa ko zubar da rashin dacewar sodium cyanide - mai ɗauke da mafita na iya haifar da mummunan sakamako ga rayuwar ruwa, ingancin ƙasa, da lafiyar ɗan adam. Alal misali, idan sodium cyanide - gurɓataccen lechate ya shiga cikin ruwa da ke kusa, zai iya haifar da kifaye masu yawa yana kashewa kuma ya gurɓata tushen ruwan sha.

Kariyar Tsaro a cikin Karɓa

A cikin ayyukan hakar ma'adinai, dole ne a bi ƙaƙƙarfan ƙa'idodin aminci lokacin sarrafa sodium cyanide. Ma'aikatan da ke da hannu a cikin shirye-shiryen, sufuri, da aikace-aikacen mafita na sodium cyanide suna buƙatar a ba su kayan aikin kariya masu dacewa, gami da safar hannu, abin rufe fuska, da tabarau na tsaro. Ya kamata a tsara wuraren ajiya na sodium cyanide don hana yadudduka da tabbatar da samun iska mai kyau don guje wa tarin hayaki mai guba.

A ƙarshe, sodium cyanide abu ne mai mahimmanci kuma wanda ba za a iya maye gurbinsa ba a cikin tudun gwal. Abubuwan sinadarai na musamman suna ba da damar ingantacciyar narkarwa da hakar gwal daga ma'adanai marasa daraja. Koyaya, tare da fa'idodinsa masu girma suna zuwa manyan ƙalubalen muhalli da aminci waɗanda dole ne a sarrafa su a hankali don tabbatar da ɗorewa da alhakin ayyukan hakar gwal.