Ib yam li cov pa roj carbon activated, qhov chaw siab thiab porosity uas activated alumina ua rau nws ntes thiab tuav tau ntau hom khoom, ua rau nws siv tau ua adsorbent, desiccant, thiab ntau ntxiv. Cov hau kev tseem ceeb uas cov khoom activated alumina siv suav nrog:
COV ADSORBENTS
Alumina ua kom nquag yog ib qho adsorbent zoo heev hauv ob qho tib si roj thiab kua, thiab yog li ntawd, siv los ntawm ntau lub lag luam rau kev tshem tawm cov khoom los ntawm lwm cov xov xwm.
Ua ib qho adsorbent, activated alumina yog qhov paub zoo tshaj plaws rau nws cov kev siv hauv kev lim dej, qhov twg nws ua haujlwm ua ib qho adsorbent pheej yig rau kev tshem tawm fluoride ntawm dej. Nws kuj tseem muaj peev xwm tshem tawm ntau yam kev ua qias tuaj, suav nrog arsenic, lead, thiab sulfur.
TSHUAJ DESICCANT
Zoo li nws lub luag haujlwm ua ib qho adsorbent, activated alumina kuj tuaj yeem nqus dej los ntawm huab cua, cia nws siv ua desiccant; activated alumina tuaj yeem ntes thiab ntes dej kom cov khoom qhuav, zoo li silica gel. Ua ib qho desiccant, activated alumina tuaj yeem nqus tau txog li 20% ntawm nws qhov hnyav hauv dej ntawm qhov av noo ntawm 50%.¹
Cov alumina ua kom nquag siv ua cov desiccant hauv ntau yam kev siv, suav nrog kev tshem tawm cov pa dej ntawm cov pa roj hauv cov chaw lag luam. Cov dej uas nqus rau ntawm cov alumina ua kom nquag tuaj yeem raug tshem tawm los ntawm kev kho cua sov thiab cov alumina rov siv dua.
Cov tshuaj catalysts
Alumina ua kom nquag kuj tseem siv dav ua tus catalyst, nrog rau lub luag haujlwm ua tus catalyst nws tus kheej, nrog rau tus neeg nqa khoom inert, lossis substrate rau lwm cov catalysts.
Ua ib qho catalyst, activated alumina yog qhov paub zoo tshaj plaws rau nws lub luag haujlwm ua Claus catalyst; activated alumina yog Claus catalyst feem ntau siv hauv kev rov qab sulfur ntawm cov roj thiab cov roj refineries.
XAUS LUS
Vim nws muaj peev xwm ua ib qho adsorbent, desiccant, thiab catalyst, activated alumina yog ib qho cuab yeej muaj txiaj ntsig zoo hauv ntau qhov chaw teeb tsa kev lag luam. Tsim los ntawm kev ua kom muaj aluminium oxide los ntawm Bayer txheej txheem ntawm calcination, activated alumina yog customizable heev thiab feem ntau yog agglomerated los txhim kho kev ua tau zoo thiab kev tuav cov yam ntxwv. Kev sim ua tau feem ntau yog ib qho kev siv zog thaum ua haujlwm nrog cov khoom activated alumina.
Lub sijhawm tshaj tawm: Lub Xya Hli-24-2019