Udindo wa Potaziyamu Permanganate mu Mulu Leaching Gold M'zigawo Njira

Mu ufumu wa kutulutsa golide, ndi kuchuluka kwa magazi ndondomeko yatuluka ngati njira yotsika mtengo komanso yothandiza, makamaka pazitsulo zagolide zotsika. Mwa ma reagents osiyanasiyana omwe amagwiritsidwa ntchito pochita izi, potaziyamu permanganate (\(KMnO_4\)) imakhala ndi gawo lofunikira komanso lamitundu yambiri lomwe limakhudza kwambiri magwiridwe antchito onse ndikuchotsa golide. Nkhaniyi ikufotokoza za ntchito ndi ubwino wa potassium permanganate mu mulu leaching golide m'zigawo.

Mankhwala a Potaziyamu Permanganate

Potaziyamu permanganate ndi oxidizing wothandizila wamphamvu, wodziwika ndi utoto wake wofiirira mu mawonekedwe olimba komanso kuthekera kwake kusungunuka m'madzi, ndikupanga yankho lofiirira. M'malo amadzimadzi, \(KMnO_4\) imasiyanitsidwa kukhala ayoni a potaziyamu (\(K^+\)) ​​ndi ayoni a permanganate (\(MnO_4^-\)). The permanganate ion imagwira ntchito kwambiri ndipo imakhala ndi chizoloŵezi champhamvu chovomereza ma elekitironi, zomwe zimapangitsa kukhala okosijeni wabwino kwambiri pamachitidwe a mankhwala. Katundu wa oxidizing uyu ndiye maziko a magwiridwe antchito ake munjira yotulutsa mulu.

Kuchuluka kwa mchere wa sulfide

Imodzi mwa ntchito zazikulu za potaziyamu permanganate mu mulu leaching ndi makutidwe ndi okosijeni wa mchere wa sulfide omwe amapezeka mu golide. Sulfides, monga pyrite ndi arsenopyrite, nthawi zambiri amadzaza tinthu tating'ono ta golide, kuteteza leaching agent kuti asakhudze golide. Potaziyamu permanganate imatulutsa mchere wa sulfide kudzera muzochita za redox. Kapangidwe ka okosijeni kameneka kamaphwanya matrix a sulfide, ndikuwonetsa tinthu tating'ono ta golide totsekeredwa. Chotsatira chake, wotsatira leaching wothandizira, makamaka cyanide kapena thiourea, amatha kusungunula golide, kupititsa patsogolo kuchuluka kwa m'zigawo.

Pre - oxidation for Enhanced Gold Dissolution

Kuphatikiza pakuphwanya zotchinga za sulfide, potaziyamu permanganate imayambitsa oxidize pamwamba pa golide. Golide, m'dziko lake, ali ndi reactivity yochepa. Komabe, pogwiritsa ntchito makutidwe ndi okosijeni ndi potaziyamu permanganate, golide wocheperako amapangidwa pamwamba. Golide wokhala ndi okosijeni woterewu amakhala wotakasuka kwambiri polowera kolowera. Mwachitsanzo, mukamagwiritsa ntchito cyanide ngati chotsitsa, golide wopangidwa ndi okosijeni amakhudzidwa mosavuta ndi ayoni a cyanide kupanga golide wosungunuka - cyanide complexes. Polimbikitsa izi pre - oxidation, potaziyamu permanganate imawonjezera kwambiri kusungunuka kwa golide, potero kumathandizira kuchira kwa golide mu mulu wa leaching.

Kuwongolera Chilengedwe cha Leaching

Potaziyamu permanganate imagwiranso ntchito pakuwongolera chilengedwe chamankhwala mkati mwa mulu wa leach. Imathandiza kukhala ndi oxidation yoyenera - kuchepetsa kuthekera (ORP) mu njira ya leaching. ORP yoyenera ndiyofunikira pakugwira bwino ntchito kwa leaching. Posintha ORP, potaziyamu permanganate imawonetsetsa kuti kuyabwa kumapitilira pamikhalidwe yabwino. Kuphatikiza apo, imatha kutulutsa zinthu zina zochepetsera zomwe zili mu ore, monga organic, zomwe zitha kusokoneza njira yotulutsa golide. Pochotsa zinthu zosokoneza izi, potaziyamu permanganate imathandizira kupititsa patsogolo kusungunuka kwa golide, kuchepetsa kuchuluka kwa zonyansa zomwe zimasungunuka pamodzi ndi golide.

Ubwino Mulu Leaching Gold M'zigawo

Kugwiritsiridwa ntchito kwa potaziyamu permanganate mu mulu wa leaching kumapereka ubwino wambiri. Choyamba, imapangitsa kuti golide abwezedwe bwino, zomwe ndi zofunika kwambiri kuti ntchito za migodi ya golide zitheke. Pogwiritsa ntchito oxidizing mchere wa sulfide ndikulimbikitsa kusungunuka kwa golide, zimathandiza kuchotsa golide wochuluka kuchokera ku miyala yamtengo wapatali. Kachiwiri, zimachepetsa kudalira zida zowononga zowononga zachilengedwe. Popeza imapangitsa kuti golide azigwiranso ntchito ndikuphwanya zotchinga za sulfide, kuchulukira kwa chinthu chachikulu chomwe chimathandizira nthawi zina kumatha kuchepetsedwa, ndikuchepetsa kuwononga chilengedwe. Kuonjezera apo, potaziyamu permanganate ndi yosavuta kugwira ndi kusunga, ndipo zomwe zimapangidwira zimakhala zochepa poyizoni poyerekeza ndi zina zomwe zimagwiritsidwa ntchito popanga migodi.

Pomaliza, potaziyamu permanganate imagwira ntchito yofunika kwambiri pakuchotsa golide mu mulu. Ntchito zake mu oxidizing mchere wa sulfide, pre - oxidizing golide kuti asungunuke bwino, ndi kuwongolera malo otsetsereka zimathandizira kwambiri kukweza kubweza golide komanso kugwira ntchito bwino pakuchotsa. Pamene makampani a migodi akupitirizabe kufunafuna njira zochiritsira komanso zogwira mtima, ntchito ya potaziyamu permanganate mu mulu wa leaching iyenera kukhala yofunika kwambiri, ndipo kafukufuku wina angapeze njira zowonjezereka zogwiritsira ntchito mankhwalawa.