Activated alumina muaj peev xwm adsorption zoo, muaj zog nto kev ua haujlwm thiab thermal stability zoo, yog li nws tau siv dav, uas yog ze rau cov khoom siv raw ntawm cov khoom siv alumina. Muaj ob yam khoom siv raw rau nws cov khoom, ib qho yog "ceev de-hmoov" ua los ntawm gibbsite los yog bayerite, thiab lwm yam yog pseudo-boehmite ua los ntawm aluminate los yog txhuas ntsev los yog ob qho tib si. Kev tsim khoom ntawm ob cov khoom siv raw yog qhia cais.
1. Kev tsim cov x-ρ alumina X-ρ alumina yog cov khoom siv tseem ceeb rau kev tsim cov khoom siv alumina. Abbreviated li FCA txawv teb chaws, nws yog hu ua "fast hmoov tshem tawm" nyob rau hauv Tuam Tshoj vim hais tias nws yog alumina hmoov uas ua los ntawm lub cev qhuav dej sai. "Instant tso hmoov" yog ib qho sib xyaw ntawm x-alumina thiab rho-alumina, thiab cov ntsiab lus sib txawv vim yog cov khoom sib txawv.
ob. Kev tsim cov txheej txheem ntawm pseudoboehmite Ntuj los yog dag alumina monohydrate thiab alumina trihydrate tsis tuaj yeem siv los ua cov khoom siv desiccants, adsorbents, catalysts thiab catalyst txhawb vim lawv qhov chaw tshwj xeeb tsawg, qhov ntim me me thiab kev ua haujlwm tsawg. Alumina monohydrate los yog alumina trihydrate yuav tsum tau ua tiav rau hauv pseudoboehmite. Pseudo-boehmite muaj qhov tshwj xeeb ntawm qhov chaw, qhov pore ntim loj, qhov pore loj thiab kev ua haujlwm siab, thiab yog tsim rau siv los ua desiccant, adsorbent, catalyst thiab catalyst carrier hauv petrochemical, chiv thiab tso pa tawm.
Cov saum toj no yog kev faib tawm ntawm cov khoom siv alumina raw khoom. Tsuas yog yog tias peb tuav ob cov ntaub ntawv no kom raug peb tuaj yeem txhim kho lawv qhov zoo thiab ua kom lawv ua haujlwm zoo dua thaum sib xyaw peb cov khoom.