Tasirin Lokacin Leaching Sodium Cyanide akan Yawan Farko

Gabatarwa

Yin amfani da ruwan Cyanide hanya ce da ake amfani da ita sosai wajen fitar da zinare daga ma'adinin zinariya. Daga cikin abubuwa daban-daban da ke shafar tsarin fitar da ruwan cyanide , lokacin fitar da ruwan sodium cyanide yana taka muhimmiyar rawa wajen tantance yawan dawowar zinare. Fahimtar alaƙar da ke tsakaninsu yana da mahimmanci don inganta aikin fitar da ruwan cyanide da kuma inganta tattalin arzikin samar da zinare.

Tsarin Cyanide Leaching

A cikin tsarin cire sinadarin cyanide, zinare a cikin ma'adinin yana amsawa da Sodium Cyanide a gaban iskar oxygen don samar da hadaddun cyanide na zinare mai narkewa. Ana iya bayyana martanin sinadarai kamar haka: 4Au + 8NaCN + O₂ + 2H₂O = 4Na[Au(CN)₂] + 4NaOH. Wannan martanin yana faruwa ne a saman ƙwayoyin zinare, kuma saurin amsawar yana shafar abubuwa da yawa, tare da lokacin cirewa yana ɗaya daga cikin mahimman abubuwan.

Yadda Lokacin Leaching ke shafar ƙimar farfadowa

Matakin farko

A farkon aikin leaching, yayin da lokaci ke ci gaba, adadin zinare da aka narkar da shi a cikin maganin yana ƙaruwa da sauri. Barbashi na zinari a saman ma'adinan suna saurin kaiwa hari da ions cyanide. Sassan saman zinari yana ba da adadi mai yawa na wuraren amsawa, da haɓakar hankali tsakanin saman gwal ɗin gwal da mafita yana haɓaka ci gaba da rushewar gwal. A cikin wannan lokacin, ƙimar leaching na zinari yana nuna haɓakar haɓakar haɓakar haɓaka, kuma adadin farfadowa yana ƙaruwa sosai tare da tsawaita lokacin leaching.

Matsayin Tsakiya

Yayin da leaching ya ci gaba, zinariyar da ke saman saman ɓangarorin ma'adinan tama yana narkewa a hankali, sauran ɓangarorin gwal kuma suna da zurfi a cikin barbashi na ma'adinan ko kuma suna da yanayin haɗaɗɗiyar sarƙaƙƙiya. A wannan lokacin, yawan leaching ya fara raguwa. Ko da yake har yanzu ana ci gaba da daukar matakin, yaduwar ions na cyanide zuwa saman gwal na gwal ya zama mafi wahala saboda samuwar cikakken bayani a kusa da barbashi da kuma toshewar wasu samfuran dauki. Duk da haka, ƙimar farfadowa har yanzu yana ƙaruwa, amma a cikin ɗan ƙaramin sauri idan aka kwatanta da matakin farko.

Daga baya Stage

Bayan wani lokaci mai tsawo na zubar da ruwa, ƙimar zubar da ruwa ta zinare ta kusanto da ƙima mai ɗorewa. Yawancin zinaren da ake iya samu cikin sauƙi ya narke, sauran zinaren kuma ko dai yana cikin yanayi mai laushi, an naɗe shi da wasu ma'adanai, ko kuma yana wanzuwa a cikin wani yanayi da yake da wahalar amsawa da cyanide. Tsawaita lokacin zubar da ruwa a wannan matakin ba shi da tasiri sosai kan ƙara yawan murmurewa. A zahiri, ci gaba da tsawaita lokacin zubar da ruwa na iya haifar da wasu mummunan sakamako, kamar ƙara yawan shan Sodium cyanide , amfani da makamashi don aikin kayan aiki, da yuwuwar haɗarin gurɓatar muhalli saboda tsawaita lokacin fallasa mafita masu ɗauke da cyanide.

Case Nazarin

Hali na 1: Ma'adinan Zinare a Shandong, China

A wani mahakar zinari da ke birnin Shandong, masu bincike sun gudanar da gwaje-gwajen gwaje-gwaje kan leken asirin cyanide. Sun gano cewa lokacin da lokacin leaching ya kasance sa'o'i 12, adadin dawo da gwal shine kawai 60%. Yayin da aka tsawaita lokacin leaching zuwa sa'o'i 24, adadin farfadowa ya karu zuwa 80%. Koyaya, lokacin da aka ƙara lokacin leaching zuwa sa'o'i 36, ƙimar dawowa ya ƙaru kaɗan kaɗan zuwa 82%. Wannan yana nuna cewa a cikin wani yanki na musamman, tsawaita lokacin leaching zai iya inganta ƙimar farfadowa yadda ya kamata, amma bayan kai wani matsayi, ƙananan sakamako na ƙara yawan farfadowa ta hanyar tsawaita lokacin leaching ya zama abin banza.

Hali na 2: Ma'adinan Zinare na Australiya

A cikin ma'adinan zinare na Australiya, an saita yanayin lokacin leaching daban-daban don nau'ikan tama daban-daban. Don ma'adinai mai sauƙi mai sauƙi, lokacin da lokacin leaching ya kasance sa'o'i 18, an sami nasarar dawo da kashi 85%. Amma ga ma'adinai tare da ƙarin hadadden abun da ke ciki wanda ya ƙunshi ƙarin ƙazanta, ko da bayan sa'o'i 36 na leaching, ƙimar dawowa kawai ya kai 75%. Wannan yana nuna cewa tasirin leaching lokaci akan adadin farfadowa yana da alaƙa da yanayin ma'adinai. Ores tare da hadaddun abubuwan ƙila na iya buƙatar dogon lokacin leaching don cimma gamsassun adadin murmurewa, amma kuma akwai iyaka.

Inganta Lokacin Leaching

Don inganta lokacin leaching, ana buƙatar la'akari da abubuwa da yawa gabaɗaya. Na farko, wajibi ne a gudanar da cikakken bincike na ma'adinai na ma'adinai don fahimtar abin da ya faru na zinari, kamar girman gwal, matakin ƙaddamarwa, da abun ciki na ma'adanai masu dangantaka. Dangane da wannan, ana iya ƙididdige lokacin leaching na farko da ya dace. Na biyu, yayin aikin leaching, ana iya aiwatar da sa ido na ainihin lokacin tattara gwal a cikin maganin leaching da sauran abubuwan da suka rage a cikin ma'adinai ta hanyar samfuri da bincike. Dangane da canjin yanayin waɗannan bayanan, ana iya daidaita lokacin leaching a cikin lokaci. Na uku, a hade tare da wasu abubuwan da suka shafi aikin leaching, irin su ƙaddamar da sodium cyanide, ƙimar pH na maganin, da zafin jiki, za a iya tsara tsarin ingantawa mai mahimmanci don cimma daidaito mafi kyau tsakanin ƙimar dawowa da farashin samarwa.

Kammalawa

Lokacin leaching na sodium cyanide yana da tasiri mai mahimmanci akan yawan dawo da zinariya a cikin tsarin leaching na cyanide. A cikin matakan farko da na tsakiya na leaching, tsawaita lokacin leaching na iya haɓaka ƙimar dawowa yadda ya kamata. Duk da haka, bayan kai wani mataki, ƙara tsawaita lokacin leaching yana da ɗan tasiri akan inganta ƙimar farfadowa kuma yana iya haifar da mummunan tasiri. Nau'o'in ma'adinai daban-daban suna da mafi kyawun lokutan leaching daban-daban, waɗanda ke buƙatar ƙaddara ta hanyar cikakken la'akari da abubuwa daban-daban da ainihin gwaje-gwaje. Ta hanyar inganta lokacin leaching, za a iya inganta ingantaccen leaching na cyanide na zinari, kuma za a iya samun fa'idodin tattalin arziki da muhalli mafi kyau a cikin masana'antar hakar gwal.