ALUMINIUM

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Cov peev txheej ntawm Aluminium

Ntau tus neeg feem ntau xav tias hlau yog cov hlau ntau tshaj plaws nyob rau hauv lub ntiaj teb crust.Qhov tseeb, txhuas yog cov hlau ntau tshaj plaws nyob rau hauv lub ntiaj teb crust, ua raws li hlau.Aluminium account rau 7.45% ntawm tag nrho cov hnyav ntawm lub ntiaj teb crust, yuav luag ob zaug. Ntau npaum li hlau!Lub ntiaj teb yog tag nrho ntawm txhuas tebchaw, zoo li cov av zoo tib yam, uas muaj ntau ntawm txhuas oxide, Al2O3.Qhov tseem ceeb tshaj plaws ore yog bauxite.Qhov tshwm sim ntawm bauxite nyob rau hauv lub ntiaj teb no yuav roughly muab faib ua peb pawg: Cenozoic cov pob zeb uas muaj cov pob zeb silicic, uas suav txog li 80% ntawm lub ntiaj teb tag nrho cov reserves; Paleozoic karstic deposits tshwm sim saum toj no carbonate pob zeb account rau txog 12% ntawm lub ntiaj teb no tag nrho reserves; Paleozoic (los yog Mesozoic) Chihewen deposits, uas tshwm sim saum toj no terrane, suav txog li 2% ntawm lub ntiaj teb tag nrho cov reserves.

Aluminium khoom

Aluminium yog ib tug silvery thiab malleable tswv cuab ntawm cov tshuaj boron pawg.

Aluminium tau dhau los ua cov hlau tsis muaj hlau ntau tshaj plaws vim nws qhov kev tiv thaiv corrosion vim passivation, tsawg ntom, tsis tshua muaj zog thiab nws nyiam tsim alloys nrog ntau yam tshuaj xws li tooj liab, zinc, manganese, silicon thiab magnesium, uas muaj ntau heev. txhim kho cov khoom siv kho tshuab.Aluminium yog cov hlau hluas uas tsis muaj nyob hauv cov xwm txheej hauv lub xeev, tab sis nyob rau hauv daim ntawv ntawm compound aluminium oxide (Al2O3).Al2O3 muaj cov ntsiab lus melting siab thiab tsis yooj yim kom txo tau, uas ua rau txhuas tshawb pom lig.In 1825, Tus kws tshawb fawb Danish Ostete txo cov anhydrous aluminium chloride nrog potassium amalgam, ob peb milligrams ntawm hlau txhuas.

1113

Xyoo 1954, tus kws tshawb fawb Fab Kis Fab Kis De Vere tau ua tiav hauv kev siv txoj kev txo sodium kom tau cov hlau txhuas, tab sis cov hlau txhuas uas tsim los ntawm cov tshuaj siv tshuaj yog kim dua kub, thiab tsuas yog siv rau kev tsim cov kaus mom hlau, cov tais diav, cov khoom ua si thiab lwm yam khoom muaj nqis uas siv los ntawm Napoleon's. Cov tsev neeg muaj koob muaj npe. Nrog rau kev tsim khoom ntawm Hall-Heru smelting txheej txheem thiab cov txheej txheem Bayer rau kev tsim cov alumina, txhuas tau pib siv dav hauv lub xyoo pua 19th.Rau hnub no, ob txoj kev no tseem yog qhov tseem ceeb (qhov tseeb yuav luag tsuas yog). txoj kev tsim cov txhuas thiab alumina.

Txheej Txheem Txhuas Txhuas

Aluminium yog cov ntsiab lus nplua nuj nyob rau hauv ntuj tsim, kev lag luam tseem ceeb rau bauxite ore, bauxite los ntawm bayer txheej txheem xws li refining txheej txheem ntawm alumina, alumina los ntawm electrolytic aluminium smelting li (tseem hu ua aluminium), yog li kev lag luam txhuas nyob rau hauv cov kev lag luam nce toj. tuaj yeem muab faib ua mining bauxite, alumina refining - peb qhov txuas xws li txhuas smelting, feem ntau, Plaub tons ntawm bauxite tuaj yeem tsim tau ob tons ntawm alumina, uas nyob rau hauv lem tuaj yeem tsim ib tuj ntawm thawj txhuas.


Post lub sij hawm: Oct-15-2021