
Dhinaca soo saarista dahabka , habka daadinta qashinka ayaa soo ifbaxay isagoo ah hab kharash-ool ah oo hufan, gaar ahaan macdanta dahabka ee heerka hoose. Waxyaabaha kala duwan ee loo isticmaalo habkan, potassium permanganate (\(KMnO_4\)) waxay door muhiim ah oo dhinacyo badan leh ka ciyaartaa oo si weyn u saameeya hufnaanta guud iyo waxtarka soo saarista dahabka. Maqaalkani wuxuu si qoto dheer u eegayaa shaqooyinka gaarka ah iyo faa'iidooyinka potassium permanganate ee habka soo saarista dahabka ee daadinta qashinka.
Sifooyinka Kiimikada ee Potassium Permanganate
Potassium permanganate waa walax awood leh oo oksaydheyn ah, oo lagu garto midabkeeda guduudan ee qoto dheer ee qaabka adag iyo awoodda ay u leedahay inay si diyaar ah ugu milmaan biyaha, sameynta xal guduudan. Deegaanka biyaha leh, \ (KMnO_4 \) waxay u kala baxdaa ions potassium (\(K^+\)) iyo ion permanganate (\(MnO_4^-\)). Ion-ka permanganate waa mid aad u firfircoon oo leh dareen xooggan oo lagu aqbalo elektarooniga, taas oo ka dhigaysa oksaydh heer sare ah falcelinta kiimikada. Hantida oksaydhaynta ayaa ah aasaaska u shaqayntiisa ee geeddi-socodka daadinta tuunbada.
Oxidation of Macdanta Sulfide
Mid ka mid ah doorka ugu muhiimsan ee potassium permanganate ee ku jira nadiifinta tuulmada waa oksaydhka macdanta sulfide ee badanaa laga helo macdanta dahabka. Sulfide-ka, sida pyrite iyo arsenopyrite, badanaa waxay ku duubaan walxaha dahabka ah, taasoo ka hortagaysa in wakiilka daadinta uu la xiriiro dahabka. Potassium permanganate wuxuu oxidiyaa macdantan sulfide-ka iyada oo loo marayo falcelinta redox. Habkan oksaydheynta wuxuu jebiyaa matrix-ka sulfide-ka, isagoo soo bandhigaya walxaha dahabka ah ee ku xiran. Natiijo ahaan, wakiilka daadinta ee xiga, oo badanaa ah cyanide ama thiourea, ayaa si wax ku ool ah u milmi kara dahabka, isagoo kor u qaadaya heerka soo saarista.
Pre-oxidation ee Kala dirida Dahab ee La Wanaajiyey
Intaa waxaa dheer in la jebiyo caqabadaha sulfide, potassium permanganate pre - oxidizes dusha dahabka ah. Dahabka, oo ku jira xaaladiisa hooyo, ayaa leh falcelin yar. Si kastaba ha noqotee, iyada oo loo marayo oksaydheynta potassium permanganate, lakab khafiif ah oo oksaydh dahab ah ayaa laga sameeyay dusha sare. Lakabka dahabka oksaydhaysan ayaa aad uga falcelinaya wakiilka leaching. Tusaale ahaan, marka loo isticmaalo cyanide sida wakiilka leaching, oogada dahabka oksaydhaysan ayaa si fudud uga falcelisa ions cyanide si ay u sameeyaan dahab milmi leh - dhismooyinka cyanide. Kor u qaadista oksaydhkan ka hor, potassium permanganate waxay si weyn u kordhisaa heerka kala dirida dahabka, taaso kor u qaadeysa soo kabashada guud ee dahabka ee habka daadinta tuulan.
Xakamaynta Deegaanka Leaching
Potassium permanganate waxa kale oo ay door ka ciyaartaa xakamaynta bay'ada kiimikaad ee ku dhex jira raso leach. Waxay ka caawisaa in ay ilaaliso oksaydhaynta ku habboon - dhimista awoodda (ORP) ee xalka leaching. ORP ku habboon ayaa lama huraan u ah hawlgalka wax ku oolka ah ee habka leaching. Marka la hagaajiyo ORP, potassium permanganate waxay hubisaa in falcelinta dheecaanku ay ku socdaan xaaladaha ugu wanaagsan. Waxaa intaa dheer, waxay oksidhiye kartaa walxaha kale ee yareeya ee ku jira macdanta, sida maadada organic, taas oo haddii kale faragelin karta habka dahabka leaching. Iyadoo la baabi'inayo walxahaas faragelinta leh, potassium permanganate waxay ka caawisaa kor u qaadista xulashada kala dirida dahabka, hoos u dhigista qadarka wasakhda ah ee lagu milmo dahabka.
Faa'iidooyinka ku jira Soosaarka Dahabka Heap Leaching
Isticmaalka potassium permanganate ee tuubada tuubada waxay bixisaa faa'iidooyin kala duwan. Marka hore, waxay hagaajinaysaa heerka guud ee soo kabashada dahabka, taas oo ah midda ugu muhiimsan ee suurtogalka ah ee dhaqaale ee hawlaha macdanta dahabka. Iyada oo si wax ku ool ah u oksaydhaynta macdanta sulfide iyo kor u qaadida milanka dahabka, waxay awood u siinaysaa in dahab badan laga soo saaro macdano heer hoose ah. Marka labaad, waxa ay yaraynaysaa ku-tiirsanaanta sii xoog badan iyo walxaha deegaanka waxyeelada leh. Maadaama ay xoojiso fal-celinta dahabka oo ay jebiso caqabadaha sulfide, xoojinta wakiilka ugu weyn ee leaching mararka qaarkood waa la dhimi karaa, iyadoo la yareynayo saameynta deegaanka. Intaa waxaa dheer, potassium permanganate waa sahlan tahay in la xakameeyo lana kaydiyo, iyo wax soo saarkeeda falcelinta guud ahaan way ka yar yihiin sunta marka loo eego qaar ka mid ah walxaha kale ee oksaydhka ee loo isticmaalo hababka macdanta.
Gebogebadii, potassium permanganate waxay u adeegtaa sidii reagement muhiim u ah geeddi-socodka soo saarista dahabka ee tuulan. Shaqadeeda ku jirta oxidizing macdanta sulfide, ka hor - oxidizing dahabka loogu talagalay kala dirida la xoojiyey, iyo xakamaynta deegaanka leaching ayaa si weyn uga qaybqaata hagaajinta heerarka soo kabashada dahabka iyo waxtarka guud ee habka soo saarista. Maaddaama warshadaha macdan qodista ay sii wadaan raadinta habab soo saarid oo waara oo hufan, doorka potassium permanganate ee tuulmidda tuubada waxay u badan tahay inay sii ahaato mid muhiim ah, cilmi baaris dheeraad ah ayaa laga yaabaa inay daaha ka qaaddo xitaa habab aad u wanagsan oo looga faa'iidaysto kiimikadan la taaban karo.
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