Muaj ob yam khoom siv raw rau kev tsim cov alumina, ib qho yog "cov hmoov ceev" ua los ntawm gibbsite lossis bayerite, thiab lwm yam yog pseudo-boehmite ua los ntawm aluminate los yog txhuas ntsev los yog ob qho tib si.
X-ρ alumina yog cov khoom siv tseem ceeb rau kev tsim cov khoom siv alumina, uas yog abbreviated li FCA nyob rau txawv teb chaws. Yuav ua li cas tsim xp alumina? Hauv Suav teb, vim tias nws yog alumina hmoov uas tsim los ntawm txoj kev ua kom lub cev qhuav dej sai, nws yog hu ua "cov hmoov tshem tawm sai". "Quick tawm hmoov" yog sib xyaw ntawm x-alumina thiab rho-alumina, thiab cov ntsiab lus sib txawv vim qhov sib txawv ntawm cov khoom siv.
Tej yam ntuj tso los yog artificially tsim alumina monohydrate thiab trihydrate alumina tsis tuaj yeem siv los ua desiccants, adsorbents, catalysts thiab catalyst carriers vim lawv qhov tshwj xeeb deg, me pore ntim thiab kev ua haujlwm tsawg. Alumina monohydrate los yog trihydrate yuav tsum tau ua tiav rau hauv pseudoboehmite. Pseudo-boehmite muaj qhov tshwj xeeb ntawm thaj chaw, qhov pore loj, qhov pore loj thiab kev ua haujlwm siab, thiab tsim nyog siv los ua desiccant, adsorbent, catalyst thiab catalyst carrier hauv kev lag luam petrochemical, chiv thiab pa roj.
