Udindo Wofunikira wa Sodium Cyanide mu Gold Ore Heap Leaching

Pankhani ya migodi ya golide, kutulutsa milu kwakhala njira yodziwika bwino komanso yotsika mtengo yopezera golide ku miyala yamtengo wapatali. Zina mwa zigawo zosiyanasiyana za mulu wa leaching process, sodium cyanide amatenga gawo lofunikira komanso lofunikira.

Chiyambi cha Gold Heap Leaching

Golide mulu wa leaching ndi njira yomwe miyala yagolide yotsika kwambiri kapena michira yoyandama imawunjikidwa papepala lopangidwa mwapadera. Mwalawu umalowetsedwa ndi njira yothira madzi, yomwe imadutsa mulu wa miyalayo, ndikusungunula golide wopezeka mu miyalayo. Njirayi ndiyoyenera kwambiri pochiza milingo yayikulu ya ores agolide otsika, chifukwa imapereka njira yosavuta komanso yachuma yochotsera golide poyerekeza ndi njira zovuta komanso zotsika mtengo za mphero ndi kusungunula.

Udindo wa Sodium Cyanide mu Kuwonongeka kwa Golide

Chemical Reaction Mechanism

Sodium cyanide (NaCN) ndi wothandizira wamphamvu kwambiri kukhetsa mulu wa golide. Chinsinsi cha mphamvu yake chagona pakuchitapo kanthu ndi golidi pamaso pa mpweya. Kachitidwe kakemiko katha kukhala kosavuta motere: 4Au + 8NaCN+O_{2}+2H_{2}O = 4Na[Au(CN)_{2}]+4NaOH

Pochita izi, golide (Au) amachitira ndi Sodium Cyanide ndi mpweya kuti apange golide wosungunuka - cyanide complex, sodium dicyanoaurate (Na[Au(CN)_{2}]). Kuchita movutikira kumeneku kumapangitsa kuti golidi, yemwe nthawi zambiri amakhala bwino kwambiri - wosanjidwa kapena kufalitsidwa mu ore, kuti asungunuke mu yankho, motero amalola kuchira kwake.

Kusankhidwa kwa Golide

Chimodzi mwazinthu zodabwitsa za Sodium cyanide mu mulu leaching ndi kusankha kwake golide. Ngakhale miyalayo imatha kukhala ndi zinthu zina ndi mchere, sodium cyanide imakonda kuchita ndi golide pamikhalidwe yoyenera. Kusankha kumeneku n'kofunika kwambiri chifukwa kumapangitsa kuti golide atulutsidwe popanda kusokoneza pang'ono kuchokera ku zigawo zina za ore, kuchepetsa zovuta ndi mtengo wa masitepe olekanitsa ndi kuyeretsa.

Chikoka pa Kuchita Bwino kwa Milu Leaching

Leaching Rate

Kugwiritsa ntchito sodium cyanide kumakhudza kwambiri kuchuluka kwa golide. Kuchulukana koyenera kwa sodium cyanide mu njira ya leaching kumatha kufulumizitsa kusungunuka kwa golide. Nthawi zambiri, kuchulukitsa kuchuluka kwa sodium cyanide mkati mwamitundu ina kumatha kupititsa patsogolo kuchuluka kwa golide - cyanide complex. Komabe, uwu siubwenzi wofananira, ndipo kukwera kwambiri kumatha kubweretsa zovuta zina monga kuchuluka kwamitengo ya reagent komanso zovuta zachilengedwe.

Mtengo Wobwezeretsa Golide

Kukhalapo kwa sodium cyanide kumagwirizana mwachindunji ndi kuchira kwa golide. M'makina opangidwa bwino komanso oyendetsedwa bwino, kugwiritsa ntchito sodium cyanide kumatha kukwaniritsa mitengo yayikulu yobwezeretsa golide, nthawi zambiri kuyambira 60 - 90% kapena kupitilira apo kutengera mtundu wa miyalayo. Kuchulukitsa kwachuma kumatanthauza kugwiritsa ntchito bwino chuma cha golide mu miyala yamtengo wapatali, chomwe chili chofunikira kwambiri pazachuma pantchito zamigodi.

Kukhathamiritsa kwa Kugwiritsa Ntchito Sodium Cyanide mu Mulu Leaching

Kuwongolera Maganizo

Kuzindikira kuchuluka koyenera kwa sodium cyanide mu njira yoperekera leaching ndi gawo lofunikira pakukhathamiritsa kwa milu ya leaching. Izi zimafuna kulingalira mozama za zinthu monga kalasi ya ore, mineralogy, ndi kukhalapo kwa zinthu zina zomwe zingadye cyanide. Mwachitsanzo, ore okhala ndi mkuwa, zinki, kapena chitsulo cha sulfide chochuluka angafunike kuchuluka kwa cyanide kuti atsimikizire kusungunuka kwa golide wokwanira, chifukwa zitsulozi zimatha kuchitapo kanthu ndi cyanide ndikupikisana ndi golide wopangira chinthucho.

PH Kusintha

PH ya yankho la leaching imathandizanso kwambiri pakuchita bwino kwa sodium cyanide. Sodium cyanide imakhala yokhazikika komanso yokhazikika m'malo amchere. Kawirikawiri, pH ya njira leaching mu golide mulu leaching anakhalabe mu osiyanasiyana 9 - 11. Kusintha pH sikungowonjezera kukhazikika kwa sodium cyanide komanso zimakhudza kusungunuka kwazitsulo zina - cyanide complexes, potero kuwongolera kusankha kwa golide m'zigawo.

Kuganizira Zachilengedwe ndi Chitetezo

Poizoni ndi Zachilengedwe Zachilengedwe

Sodium cyanide ndi chinthu chakupha kwambiri. Pankhani ya golide mulu wa leaching, njira zoyendetsera chilengedwe ndizofunikira kuti ziletse kutulutsidwa kwake ku chilengedwe. Kutayira kapena kutaya kosayenera kwa sodium cyanide - yomwe ili ndi mayankho kumatha kukhala ndi zotsatirapo zoyipa pazamoyo zam'madzi, nthaka yabwino, komanso thanzi la munthu. Mwachitsanzo, ngati sodium cyanide - leachate yowonongeka itsikira m'madzi oyandikana nawo, imatha kupha nsomba zambiri ndikuwononga madzi akumwa.

Kusamala Zachitetezo Pogwira

Pogwira ntchito zamigodi, njira zotetezeka zotetezedwa ziyenera kutsatiridwa pogwira sodium cyanide. Ogwira ntchito yokonza, kuyendetsa, ndi kugwiritsa ntchito mankhwala a sodium cyanide ayenera kupatsidwa zida zoyenera zodzitetezera, kuphatikizapo magolovesi, masks, ndi magalasi otetezera chitetezo. Malo osungiramo sodium cyanide ayenera kupangidwa kuti ateteze kutayikira komanso kuonetsetsa kuti mpweya wabwino umalowa bwino kuti utsi wapoizoni usachuluke.

Pomaliza, sodium cyanide ndi chinthu chofunikira komanso chosasinthika pakupanga mulu wa golide. Kapangidwe kake kapadera kamathandizira kusungunuka bwino ndikuchotsa golide kuchokera ku ore otsika. Komabe, ndi zopindulitsa zake zazikulu zimabwera zovuta zazikulu zachilengedwe ndi chitetezo zomwe ziyenera kuyang'aniridwa mosamala kuti zitsimikizire kuti migodi ya golide yokhazikika komanso yodalirika.