
Dhinaca macdan qodista casriga ah, Heap Leaching waxay soo baxday hab si ballaaran loo qaatay oo kharash-ool ah oo lagu soo saaro dahabka macdanta heerka hoose. Qaybaha kala duwan ee habkan, Cyanide , gaar ahaan Sodium Cyanide (NaCN), ayaa door muhiim ah ka ciyaara.
Muhiimadda Sodium Cyanide ee Soo saarista Dahabka
Tirakoobyadu waxay muujinayaan in sodium cyanide loo isticmaalo in ka badan 80% hababka soo saarista dahabka . Heerka sare ee codsigan wuxuu hoosta ka xariiqayaa muhiimadda ay u leedahay warshadaha macdanta. Tusaale ahaan, macdan qodista Tansaaniya, ka dib markii la soo bandhigay Sodium cyanide oo ah wakiil biyo-mareen ah, horumar la taaban karo ayaa la arkay. Heerka soo kabashada dhaymada macdanta ayaa ka kacay 60% asalka ah ilaa 85%, wax soo saarkuna sidoo kale si weyn ayuu u kordhay. Tirooyinkani ma muujinayaan oo keliya waxtarka sodium cyanide ee habka ka faa'iidaysiga laakiin sidoo kale waxay muujinayaan doorkeeda muhiimka ah ee kor u qaadista heerarka soo kabashada dahabka iyo mugga wax soo saarka.
Farsamaynta Sodium Cyanide ee ku jirta Heap Leaching
Marka lagu jiro habka qulqulka tuulan, dahabka heerka hoose ee dahabka ah ama dabada sabbaynaya ayaa lagu dul tuulan yahay suuf si gaar ah loo dhisay. Dabadeed, xal sodyam cyanide ah ayaa lagu buufiyaa tuubada macdanta si wareeg ah. Joogitaanka oksijiinta (sida caadiga ah hawada), sodium cyanide waxay la falgashaa dahabka macdanta. Falcelinta kiimikaad waxaa guud ahaan loo sheegi karaa sida soo socota: 4Au + 8NaCN + O₂+ 2H₂O = 4Na[Au(CN)₂]+ 4NaOH. Dareen-celintan, dahabku wuxuu sameeyaa isku-dhafka milmay, sodium aurocyanide (Na[Au (CN)₂]), kaas oo markaa ku milma xalka oo la sii soo kabsan karo.
Faa'iidooyinka Isticmaalka Sodium Cyanide ee Kuleylnimada Heap Leaching
Waxtar Sare : Sida ku cad tusaalaha macdanta Tansaaniya, sodium cyanide waxay si wax ku ool ah u milmi kartaa dahabka macdanta, taasoo horseedaysa koror weyn oo ku yimaada heerka soo kabashada. Waxtarkan sare ee lagu soo saarayo dahabka macdanta heerka hoose wuxuu ka dhigayaa qulqulka tuulmada leh sodium cyanide ikhtiyaar macquul ah oo loogu talagalay macdanta oo haddii kale loo arki lahaa mid aan dhaqaale ahayn.
Waxtarka Kharashka : Marka la barbardhigo habab kale oo dahab ah oo laga soo saaro, isticmaalka sodium cyanide ee qashin-qubka waa mid aan qaali ahayn. Qiimaha guud ee habka qashin-qubka, oo ay ku jiraan qiimaha sodium cyanide, badanaa wuu ka hooseeyaa kan hababka soo saarista ee aadka u adag iyo kuwa tamarta badan. Waxtarkan kharashka - waa arrin weyn oo gacan ka geysata isticmaalkeeda baahsan ee warshadaha macdanta.
Caqabadaha iyo Taxadirrada La Xiriira Sodium Cyanide
Sumowga : Sodium cyanide waa sun aad u badan. Daadasho kasta ama si khaldan u isticmaalka xalka cyanide waxay khatar weyn ku noqon kartaa deegaanka iyo caafimaadka aadanaha. Sidaa darteed, tallaabooyin badbaado oo adag iyo habraacyo ilaalin deegaan waa in la sameeyaa inta lagu jiro kaydinta, rarista, iyo isticmaalka sodium cyanide. Macdanta waxaa looga baahan yahay inay lahaadaan nidaamyo xakameyn oo si wanaagsan loo qaabeeyey si looga hortago daadashada cyanide iyo habab daaweyn oo hufan oo loogu talagalay xalalka qashinka ee cyanide-ka ku jira.
U hoggaansanaanta Sharciyeed : Sababtoo ah suntiisa, isticmaalka sodium cyanide waxaa ku xiran xeerar adag dalal badan. Shirkadaha macdan qodista waa inay u hoggaansamaan xeerarkan ku saabsan kaydinta, maaraynta, iyo tuurista cyanide. Tan waxaa ka mid ah la socodka joogtada ah ee heerarka cyanide ee wasakhda qashinka iyo hubinta inay buuxiyaan heerarka deegaanka ee la oggol yahay.
Gebogebadii, sodium cyanide waa reagent lagama maarmaanka u ah geeddi-socodka daadinta qashinka ee macdanta dahabka. Waxtarkeeda sare iyo qiimaha - waxtarka ayaa ka dhigaya doorashada la doorbido ee dahabka laga soo saaro macdanta darajada hoose. Si kastaba ha ahaatee, sunta la xiriirta iyo shuruudaha sharciyeynta ayaa u baahan in si taxadar leh loo maareeyo iyo u hoggaansanaanta adag si loo xaqiijiyo hawlgallada macdan qodista oo waara oo badbaado leh.
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