Lub luag haujlwm ntawm txhuas nitrate hauv kub mine leaching

Tag nrho cov av nkos cyanide leaching yog txheej txheem qub thiab txhim khu kev qha kub extraction, uas yog siv dav hauv kev tsim khoom niaj hnub no.Nyob rau hauv xyoo tas los no, txhawm rau nce kub ntau lawm, paub txog kub ntau lawm ntawm qhov chaw, thiab ua kom cov khoom lag luam ua tau zoo, ntau qhov kub mines tau nthuav dav daim ntawv thov ntawm lawv cov txheej txheem tag nrho cov av nkos cyanide leaching.

Cov embedded hais ntawm kub nyob rau hauv ntau yam ores yog feem ntau nruab nrab thiab nplua-grained kub, thiab qhov tshwm sim ntawm kub yog feem ntau intergranular kub thiab fissure kub.Lub xeev embedded no yog qhov zoo rau tag nrho cov av nkos cyanide leaching, tab sis tseem muaj me me ntawm cov khoom zoo qhwv hauv cov kub hauv ntau cov ores, uas yuav muaj qee yam cuam tshuam rau cov leaching tus nqi ntawm kub.Cov txiaj ntsig kev tshawb fawb pom tau hais tias txhua hom ore yog ib qho nyuaj kub ore rau leach, thiab ntau cov cyanide tau noj thaum cyanide leaching, uas cuam tshuam rau leaching tus nqi ntawm kub.
Cov txheej txheem tag nrho cov av nkos cyanide leaching tsis tsuas yog siv ntau cov cyanide, tab sis kuj muaj qhov qis qis rau nruab nrab- thiab high-sulfide kub ore uas muaj ntau yam tsis zoo xws li tooj liab, arsenic, thiab sulfur.Ntxiv cov hmoov lead nitrate rau pretreatment ua ntej leaching yuav txo tau cyanide poob thiab nce tus nqi leaching.
Ntxiv cov hmoov lead nitrate ua ntej leaching tuaj yeem txo cov ntsiab lus ntawm cov hlau soluble hauv cov slurry, yog li txo cov sodium cyanide noj.Hauv cov mines kub, coj cov ore-hom high-flavor pyrrhotite-hom kub-2-tooj ​​liab ore ua piv txwv.Cov ntsiab lus ntawm pyrrhotite nce mus txog 23130%.Nyob rau hauv cov qauv molecular ntawm pyrrhotite, muaj ib tug weakly bonded sulfur atom uas yog yooj yim oxidized rau soluble sulfide, uas siv ib tug loj npaum li cas ntawm cyanide thaum lub sij hawm cyanide leaching txheej txheem thiab prolongs lub pretreatment lub sij hawm.Thiab qhov sib ntxiv ntawm cov hlau lead nitrate tuaj yeem txo qhov muaj sulfide ions hauv cov slurry thiab cov tshuaj tsw qab soluble sulfide, yog li txo cov kev noj ntawm sodium cyanide thiab txhim kho cov leaching tus nqi.