Sodium cyanide a cikin Heap Leaching: Mahimmin Factor a Haƙar ma'adinan Zinariya

A fannin hakar ma’adanai na zamani. Heap Leaching ya fito a matsayin hanyar da aka yarda da ita sosai kuma mai tsada - ingantacciyar hanya don fitar da zinare daga ƙananan ma'adanai. Daga cikin bangarori daban-daban na wannan tsari, Cyanide, musamman sodium Cyanide (NaCN), yana taka muhimmiyar rawa.

Muhimmancin Sodium Cyanide a cikin Haƙar Zinare

Alkaluma sun nuna haka sodium cyanide ana amfani da shi a cikin fiye da 80% na Hakar Zinariya matakai. Wannan babban adadin aikace-aikacen yana nuna mahimmancinsa a cikin masana'antar hakar ma'adinai. Misali, a cikin ma'adinai a Tanzaniya, bayan gabatarwar Sodium cyanide a matsayin wakili na leaching, an sami ci gaba na ban mamaki. Adadin dawo da tufa na tama ya ƙaru daga ainihin 60% zuwa 85%, kuma abin da aka fitar shima ya ƙaru sosai. Waɗannan alkaluma ba wai kawai suna nuna tasirin sodium ba cyanide a cikin tsarin fa'ida amma kuma yana nuna muhimmiyar rawar da yake takawa wajen haɓaka ƙimar dawo da gwal da yawan samarwa.

Kayan aikin Sodium Cyanide a cikin Heap Leaching

A cikin aikin tsibin tsibi, ƙananan ma'adinan gwal ko wutsiyar ruwa ana tara su a kan wani katako na musamman wanda ba zai iya jurewa ba. Sa'an nan kuma, ana fesa maganin sodium cyanide a kan tudun ma'adinan ta hanyar hawan keke. A gaban iskar oxygen (yawanci daga iska), sodium cyanide yana amsawa tare da zinariya a cikin ma'adinai. Ana iya bayyana halayen sinadaran gabaɗaya kamar haka: 4Au + 8NaCN + O₂+ 2H₂O = 4Na[Au(CN)₂]+ 4NaOH. Ta hanyar wannan halayen, zinari yana haifar da wani hadadden mai narkewa, sodium aurocyanide (Na[Au (CN)₂]), wanda sai ya narke a cikin maganin kuma za'a iya sake dawowa.

Fa'idodin Amfani da Sodium Cyanide a cikin Heap Leaching

1. High efficiency: Kamar yadda aka nuna a cikin misalin ma'adinan Tanzaniya, sodium cyanide na iya narkar da zinari yadda ya kamata daga ma'adanai, wanda zai haifar da karuwa mai yawa a cikin farfadowa. Wannan babban inganci wajen fitar da gwal daga ƙananan ma'adanai ya sa tulin leaching tare da sodium cyanide ya zama zaɓi mai yuwuwa don ma'adinai wanda in ba haka ba za a yi la'akari da rashin tattalin arziki.

2. Kudin - tasiri: Idan aka kwatanta da wasu hanyoyin hakar gwal, yin amfani da sinadarin sodium cyanide a cikin tudun tsibi ba shi da tsada. Gabaɗaya farashin tsarin leaching, gami da farashin sodium cyanide, galibi yakan yi ƙasa da na ƙarin hadaddun da makamashi - hanyoyin hakar mai tsanani. Wannan farashi - tasiri shine babban abin da ke ba da gudummawa ga yaduwar amfani da shi a cikin masana'antar hakar ma'adinai.

Kalubale da Kariyar da ke Haɗe da Sodium Cyanide

1. Abin guba: Sodium cyanide yana da guba sosai. Duk wani yatsa ko rashin kula da maganin cyanide na iya haifar da babbar barazana ga muhalli da lafiyar ɗan adam. Don haka, tsauraran matakan tsaro da ka'idojin kare muhalli dole ne su kasance cikin wurin ajiya, sufuri, da amfani da sodium cyanide. Ana buƙatar ma'adinai don samun tsarin tsare-tsare masu kyau don hana ɓarnawar cyanide da ingantattun hanyoyin magani don cyanide - mai ɗauke da maganin sharar gida.

2. Yarda da Ka'idoji: Saboda yawan guba, amfani da sodium cyanide yana ƙarƙashin ƙa'idodi masu tsauri a ƙasashe da yawa. Kamfanonin hakar ma'adinai dole ne su bi waɗannan ƙa'idodi game da ajiya, sarrafawa, da zubar da cyanide. Wannan ya haɗa da saka idanu akai-akai na matakan cyanide a cikin sharar gida da kuma tabbatar da sun cika ka'idojin muhalli da aka halatta.

A ƙarshe, sodium cyanide shine maƙasudin reagent a cikin tsarin leaching don hakar gwal. Babban ingancinsa da farashi - tasirin sa ya sa ya zama zaɓin da aka fi so don cire zinare daga ƙananan ma'adinai. Koyaya, abubuwan da ke da alaƙa da guba da buƙatun tsari suna buƙatar kulawa da hankali da ƙaƙƙarfan yarda don tabbatar da dorewa da amintaccen ayyukan hakar ma'adinai.