Tus nqi ntawm tooj liab li cas thiaj tau txiav txim?
Muaj ntau ntau yam los txiav txim siab thaum txiav txim siab tus nqi ntawm tooj liab tso nyiaj. Ntawm lwm yam, cov tuam txhab yuav tsum txiav txim siab qhab nia, Refining cov nqi, kwv yees cov khoom siv tooj liab thiab yooj yim ntawm copper me me. Hauv qab no yog cov lus qhia luv luv ntawm ob peb yam uas xav txog thaum txiav txim siab tus nqi ntawm tooj liab tso nyiaj.
1
Dab tsi ntawm tooj liab tso?
Porphyry tooj liab tso nyiaj yog qib qis tab sis yog qhov tseem ceeb ntawm tooj liab vim tias lawv tuaj yeem raug muab txo rau ntawm cov nqi loj ntawm tus nqi qis. Lawv feem ntau muaj 0.4% rau 1% tooj liab thiab me me ntawm lwm yam hlau xws li molybdenum, nyiaj thiab kub. Porphyry tooj liab tso nyiaj feem ntau yog loj heev thiab muab rho tawm los ntawm kev qhib lub qhov tsuas.
Tooj liab-coj sedimentary pob zeb yog qhov tseem ceeb tshaj plaws ntawm tooj liab tso nyiaj, suav rau kwv yees li ib feem peb ntawm lub ntiaj teb nrhiav tau tooj liab.
Lwm hom tooj liab tso pom thoob plaws ntiaj teb suav nrog:
Volcanogenic loj heev sulfide (VMS) cov nyiaj tso rau ntawm tooj liab sulphories tsim los ntawm hydrothermal cov txheej xwm hauv hiav txwv hiav txwv.
Hlau Oxide-Tooj-Kub-Kub (IOCG) cov nyiaj tso cia yog cov txiaj ntsig zoo ntawm tooj liab, kub thiab uranium ores.
Tooj liab Skarn tso nyiaj, dav kev hais lus, yog tsim los ntawm kev siv tshuaj lom neeg thiab lub cev ntxhia hloov uas tshwm sim thaum ob lub voos sib txawv uas tshwm sim rau hauv kev sib cuag.
2
Dab tsi yog qib nruab nrab ntawm tooj liab tso nyiaj?
Qib yog qhov tseem ceeb tshaj plaws hauv tus nqi ntawm cov ntxhia tso nyiaj thiab yog qhov kev ntsuas ntawm cov hlau. Feem ntau tooj liab lossis muaj tsuas yog ib feem me me ntawm lub tooj hlau tooj liab khi rau hauv cov khoom muaj txiaj ntsig zoo oree. Tus so ntawm cov ore tsuas yog cov pob zeb tsis xav tau.
Kev tshawb nrhiav cov tuam txhab siv Drilling cov kev pab cuam los rho cov qauv pob zeb hu ua CORES. Cov tub ntxhais yog tom qab ntawd tshuaj ntsuam xyuas los txiav txim siab lub "qib kawm" ntawm qhov tso nyiaj.
Tooj liab Intoed qib feem ntau yog qhia raws li qhov hnyav feem pua ntawm tag nrho cov pob zeb. Piv txwv li, 1000 kilograms ntawm tooj liab ore muaj 300 kilo ntawm tooj liab hlau nrog ib qib 30%. Thaum lub concentration ntawm cov hlau yog qhov qis dua, nws tuaj yeem piav qhia txog feem ntawm ib lab. Txawm li cas los xij, kev sib txoos yog cov kev sib txoos uas koom nrog tus tooj liab, thiab cov tuam txhab tshawb fawb kwv yees qib los ntawm kev drilling thiab kev ua yeeb yam.
Lub tooj liab nruab nrab ntawm lub tsev luam ntawv tooj liab nruab nrab hauv lub xyoo pua 216 yog tsawg dua 0.6%, thiab cov feem ntawm cov zaub ore ntim hauv tag nrho cov ore ore muaj tsawg dua 2%.
Cov tub ua lag luam yuav tsum saib qib kwv yees nrog lub qhov muag tseem ceeb. Thaum tshawb nrhiav cov tuam txhab tshawb nrhiav cov teeb meem qib, cov tub ua lag luam yuav tsum paub nws kom paub txog qhov tob ntawm kev txiav txim siab qib. Tus nqi ntawm qib siab ntawm qhov tob qis yog ntau dua li tus nqi ntawm Medi -cre tau zoo los ntawm kev sib sib zog nqus.
3
Nws tau nqi npaum li cas rau kuv lub tooj liab?
Qhov loj tshaj plaws thiab cov khoom siv tooj liab loj tshaj plaws yog qhib-Pit Mines, txawm hais tias cov tsev loj tooj liab tsis yooj yim. Qhov tseem ceeb tshaj plaws hauv qhov qhib lub qhov kuv yog cov peev txheej ze rau saum npoo.
Cov tuam txhab me me yog xav paub txog qhov ntau ntawm overburden, uas yog qhov nyiaj ntawm lub pob zeb tsis muaj txiaj ntsig thiab av saum cov khoom siv tooj liab. Cov khoom siv no yuav tsum tau muab tshem tawm kom nkag mus rau cov peev txheej. Escondida, tau hais los saum toj no, muaj cov peev txheej uas tau npog los ntawm cov kev tshaj lij overburden, tab sis qhov tso nyiaj tseem muaj txiaj ntsig kev lag luam vim muaj ntau cov peev txheej hauv av.
4
Hom ntawm tooj liab tooj liab yog dab tsi?
Muaj ob hom kev sib txawv tooj liab tso nyiaj: Sulfide ores thiab oxide ores. Tam sim no, feem ntau tshwm sim ntawm tooj liab ore yog sulfide ntxhia minery chaalcophrite, uas cov account rau kwv yees li 50% ntawm cov tooj liab. Sulfide ores tau ua tiav los ntawm froth flotation kom tau txais tooj liab. Tooj liab ores uas muaj chalcopyrite tuaj yeem tsim cov khoom siv tau muaj 20% mus rau 30% tooj liab.
Qhov txiaj ntsig zoo tshaj plaws chancocite feem ntau yog qib siab dua, thiab txij li charcocite muaj cov hlau, cov ntsiab lus tooj liab nyob hauv 37% rau 40%. Chalcocite tau raug mined rau ntau pua xyoo thiab yog ib qho ntawm cov khoom lag luam tooj liab uas muaj txiaj ntsig tshaj plaws. Qhov laj thawj rau qhov no yog nws cov ntsiab lus tooj liab lub siab, thiab tooj liab nws muaj yog yooj yim sib cais los ntawm cov leej faj.
Txawm li cas los xij, nws tsis yog lub tooj liab loj kuv li niaj hnub no. Tooj liab oxide ore yog leached nrog sulfuric acid, tso cov me tooj liab pob rau hauv cov sulphuric acid tov kev daws teeb meem tooj liab sulfate. Lub tooj liab yog tom qab los ntawm tooj liab sulfate daws (hu ua kev nplua nuj kho thiab kev lag luam electraction thiab cov kev lag luam electrolytic thiab kev lag luam electrolytic
Lub Sijhawm Post: Jan-25-2024
