Muaj ob hom khoom siv raw rau kev tsim cov alumina, ib qho yog "cov hmoov ceev" ua los ntawm trialumina lossis Bayer pob zeb, thiab lwm yam yog tsim los ntawm aluminate los yog txhuas ntsev los yog ob qho tib si tib lub sijhawm.
X,ρ-alumina thiab cov khoom ntawm X,ρ-alumina
X, ρ-alumina yog cov khoom siv tseem ceeb rau kev tsim cov pob alumina, lossis FCA luv luv. Nyob rau hauv Suav teb, nws yog hu ua "ceev tso hmoov" vim hais tias ntawm alumina hmoov uas ua los ntawm txoj kev lub cev qhuav dej sai. "Fast depowder" yog ib tug sib tov ntawm X-alumina thiab p-alumina nrog cov ntsiab lus sib txawv vim cov khoom sib txawv.
X,ρ-alumina tau tshawb pom hauv xyoo 1950 thiab tau lees paub los ntawm ASTM hauv xyoo 1960. Hauv xyoo 1970, x thiab Europe. Tus yuam sij rau X, ρ -alumina thev naus laus zis yog lub cev qhuav dej sai, feem ntau yog nyob rau hauv lub txaj fluidized reactor, qhov twg lub txaj kub yog tswj los ntawm combustion gas los yog kua. Nyob rau hauv 1975-1980, Tianjin lub koom haum ntawm tshuaj lom neeg kev lag luam ntse tsim lub ncua kev kawm ntawv cua sov ceev stripping ntau lawm technology nrog cov yam ntxwv ntawm Suav technology. Nws siv lub khob reactor, ntxiv cov qhuav thiab crushed aluminium hydroxide, thiab ua cov sib tov ntawm X-alumina thiab ρ-alumina los ntawm flash roasting 0.1 ~ 10s nyob rau hauv lub cauj lub cev qhuav dej sai.
Post lub sij hawm: Apr-01-2023
