Dab tsi yog Aluminium Oxide Ua los ntawm
Aluminium oxide yog ib qho tshuaj sib xyaw uas feem ntau siv rau hauv ntau yam kev lag luam, nrog rau kev ua kom abrasive thiab catalyst. Tab sis qhov twg yog qhov sib xyaw no tuaj ntawm? Ntawm no, peb yuav tshawb txog keeb kwm thiab cov khoom ntawm aluminium oxide.
Aluminium oxide yog ib qho inorganic compound tsim ntawm txhuas thiab oxygen. Cov tshuaj formula rau txhuas oxide yog Al2O3. Nws yog lub npe hu rau nws qhov siab melting point, uas yog nyob ib ncig ntawm 2, 000 degrees Celsius. Qhov no ua rau nws muaj txiaj ntsig zoo rau kev siv kub-kub, xws li cov kab hluav taws xob thiab cov crucibles.
Txoj kev siv ntau tshaj plaws rau kev tsim cov txhuas oxide yog los ntawm cov txheej txheem Bayer. Qhov no yog cov txheej txheem tshuaj lom neeg uas cuam tshuam nrog kev rho tawm aluminium los ntawm bauxite ore. Bauxite yog cov pob zeb sedimentary uas muaj cov qib siab ntawm aluminium oxide, nrog rau lwm yam minerals thiab cov ntsiab lus.
Txhawm rau rho tawm aluminium los ntawm bauxite, lub pob zeb yog thawj zaug crushed thiab tov nrog ib tug daws ntawm sodium hydroxide. Qhov no ua rau cov txhuas oxide yaj thiab sib cais los ntawm lwm cov ntxhia hauv pob zeb. Tom qab ntawd cov aluminium oxide yog precipitated tawm ntawm cov tshuaj, ntxuav, thiab qhuav los tsim ib tug zoo hmoov.
Lwm txoj hauv kev los ua aluminiumoxideyog los ntawm kev siv lub plasma arc rauv. Nyob rau hauv cov txheej txheem no, txhuas seem los yog raw cov ntaub ntawv, xws li alumina hmoov, yog rhuab mus rau high kub siv lub plasma arc. Qhov no ua rau cov aluminium yaj thiab hnov mob nrog oxygen hauv huab cua, ua rau txhuas oxide.
Aluminium oxide muaj ntau yam kev siv hauv kev lag luam, nrog rau kev sib tsoo rau sandblasting, polishing, thiab sib tsoo. Nws kuj yog siv los ua cov khoom siv refractory rau kev siv kub-kub, xws li cov khoom siv hauv tsev thiab cov crucibles. Hauv kev lag luam catalyst, aluminium oxide yog siv los ua cov khoom txhawb nqa rau catalysts, uas yog siv ntau yam tshuaj lom neeg.
Hauv kev xaus, aluminium oxide yog cov tshuaj lom neeg uas feem ntau siv hauv kev lag luam. Nws yog tsim los ntawm bauxite ore los ntawm cov txheej txheem Bayer los yog los ntawm cua sov txhuas seem los yog raw cov ntaub ntawv uas siv lub plasma arc rauv. Nrog nws qhov siab melting point thiab ntau yam kev siv,aluminium oxideyog ib yam khoom tseem ceeb hauv kev lag luam niaj hnub no.
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