Spodumene txheej txheem cej luam
Cov mis mos molecular ntawm spodumene yog LiAlSi2O6, qhov ceev yog 3.03 ~ 3.22 g / cm3, hardness yog 6.5-7, non-magnetic, glassy luster, theoretical qib ntawm Li2O yog 8.10%, thiab spodumene yog columnar, granular los yog phaj. -zoo li. Monoclinic crystal system, nws cov xim muaj xim yog xim liab, grey-ntsuab, daj thiab grey-dawb.Lithium yog lub teeb hlau nrog lub cev tshwj xeeb thiab tshuaj lom neeg. Nws yog tsuas yog siv nyob rau hauv kev ua tub rog kev lag luam nyob rau hauv thaum ntxov lub hnub nyoog thiab raug suav hais tias yog ib qho khoom siv tswv yim. Tam sim no, muaj ntau tshaj 100 hom lithium thiab nws cov khoom. Lithium feem ntau yog siv los tsim cov roj teeb uas muaj peev xwm lithium, cov khoom siv ntxiv hauv cov electrolysis ntawm txhuas, thiab cov roj uas tsis kub-resistant. Tsis tas li ntawd, daim ntawv thov nyob rau hauv cov teb ntawm iav ceramics, cov khoom siv hluav taws xob, tshuaj thiab tshuaj lom neeg kev lag luam kuj tau dhau los ua ntau thiab ntau dua.
Raws li cov khoom siv lithium ntxhia nplua nuj nyob hauv lithium thiab feem ntau ua rau muaj kev lag luam ntawm lithium ntsev, spodumene feem ntau yog muab faib rau hauv Australia, Canada, Zimbabwe, Zaire, Brazil thiab Tuam Tshoj. Cov mines spodumene hauv Xinjiang Keketuohai, Ganzi thiab Aba hauv Sichuan, thiab cov mines lepidolite hauv Yichun, Jiangxi muaj cov peev txheej lithium. Tam sim no lawv yog thaj chaw tseem ceeb rau kev khawb cov khoom lithium hauv Suav teb.
Spodumene concentrate qib
Spodumene concentrates muab faib ua ntau hom kev siv thiab qib. Tus qauv rau cov qib ntawm cov concentration tso zis yog qhia nyob rau hauv cov lus hauv qab no. Concentrate cov zis qib suav nrog peb pawg hauv qab no: cov hlau tsis muaj lithium concentrate, lithium concentrate rau ceramics thiab lithium concentrate rau kev lag luam tshuaj.
Spodumene ore beneficiation method
Kev sib cais ntawm spodumene yog cuam tshuam los ntawm ntau yam, xws li: ntxhia symbiosis, ore qauv hom, thiab lwm yam, uas yuav tsum tau muaj cov txheej txheem sib txawv.
Flotation:
Sib cais spodumene los ntawm silicate minerals nrog zoo sib xws flotation kev ua tau zoo yog ib qho nyuaj rau spodumene flotation txoj kev nyob rau hauv tsev thiab txawv teb chaws. Spodumene flotation txheej txheem tuaj yeem muab faib ua cov txheej txheem rov qab flotation thiab txheej txheem flotation zoo. Lub ntsiab lithium-muaj cov zaub mov tuaj yeem sib cais los ntawm flotation, tshwj xeeb tshaj yog rau spodumene nrog qib qis, nplua-grained, complex muaj pes tsawg leeg, flotation tseem ceeb heev.
Sib nqus sib cais:
Sib nqus sib cais feem ntau yog siv los tshem tawm cov hlau uas muaj impurities hauv lithium concentrates lossis cais cov hlau tsis muaj zog hlau-lepidolite. Hauv kev xyaum ntau lawm, spodumene mloog zoo tau los ntawm txoj kev flotation qee zaum muaj ntau cov hlau tsis huv. Txhawm rau txo cov ntsiab lus ntawm hlau impurities, sib nqus sib nqus tuaj yeem siv rau kev kho mob. Cov khoom sib nqus sib nqus yog cov khoom siv ruaj khov-nruas-hom magnetic separator, ntub-hom muaj zog sib nqus phaj-hom magnetic separator, thiab lub nplhaib ntsug high-gradient magnetic separator. Cov spodumene tailings yog tsim los ntawm feldspar, thiab ntsug nplhaib high-gradient sib nqus sib nqus cais thiab electromagnetic slurry sib nqus sib nqus cais kuj tseem siv tau los tshem tawm cov impurities kom tau txais cov khoom feldspar uas ua tau raws li cov khoom siv raw khoom.
Dense Medium Method:
Nyob rau hauv qhov kub thiab txias, qhov ceev ntawm spodumene nyob rau hauv spodumene ore yog me ntsis loj dua li ntawm gangue minerals xws li quartz thiab feldspar, feem ntau txog 3.15 g / cm3. Feem ntau, spodumene ore yog txheeb los ntawm kev siv cov kua hnyav nrog qhov ntom ntom ntawm spodumene, quartz thiab feldspar, xws li tribromomethane thiab tetrabromoethane. Ntawm lawv, qhov ceev ntawm spodumene yog ntau dua li cov kua hnyav, yog li nws nkag mus rau hauv qab thiab raug cais los ntawm gangue minerals xws li feldspar thiab quartz.
Combined beneficiation method:
Tam sim no, nws yog ib qho nyuaj kom tau txais cov lithium concentrates rau "tsis zoo, zoo, thiab lwm yam" lithium minerals los ntawm ib txoj kev tau txais txiaj ntsig. Txoj kev sib koom ua ke yuav tsum tau siv. Cov txheej txheem tseem ceeb yog: flotation-gravity sib cais-sib nqus sib cais ua ke txheej txheem, Flotation-magnetic sib cais ua ke txheej txheem, flotation-tshuaj kho cov txheej txheem ua ke, thiab lwm yam.
Piv txwv ntawm spodumene beneficiation:
Cov ntxhia tseem ceeb ntawm spodumene ore tuaj ntawm Australia yog spodumene, nrog Li2O cov ntsiab lus ntawm 1.42%, uas yog qib nruab nrab lithium ore. Muaj ntau lwm yam minerals nyob rau hauv lub ore. Gangue minerals feem ntau yog feldspar, quartz, muscovite, thiab hematite mine thiab lwm yam.
Spodumene yog muab qhab nia los ntawm kev sib tsoo, thiab qhov kev xaiv particle loj yog tswj rau -200 mesh 60-70%. Muaj ntau tus thawj nplua-grained sludge nyob rau hauv thawj ore, thiab chlorite thiab lwm yam minerals uas yooj yim rau silt thaum lub sij hawm crushing thiab sib tsoo txheej txheem yog feem ntau nws yuav mob heev cuam tshuam nrog rau ib txwm flotation ntawm ore. Cov av nkos zoo yuav raug tshem tawm los ntawm kev ua haujlwm desliming. Los ntawm cov txheej txheem sib nqus sib nqus thiab flotation, ob yam khoom, spodumene mloog zoo thiab feldspar mloog zoo, uas tuaj yeem siv los ua cov khoom siv ceramic, tau txais.
Post lub sij hawm: Jun-02-2021