Calcined aluminathiab alumina yog cov khoom sib txawv, thiab lawv qhov sib txawv tseem ceeb nyob hauv lawv txoj kev npaj thiab cov khoom.
Calcined alumina yog ib yam khoom uas tau txais los ntawm calcining natural aluminium hydroxide minerals los ntawm kub kub (feem ntau saum 1100 degree). Thaum lub sij hawm calcination, aluminium hydroxide minerals poob lawv cov dej siv lead ua thiab crystallize rau hauv alumina. Calcined alumina muaj cov khoom loj dua, feem ntau yog xim dawb lossis grey, muaj kev ntxhib los mos, muaj thermal stability thiab tshuaj stability, thiab yog dav siv hauv ceramics, refractory cov ntaub ntawv, cov khoom siv hluav taws xob thiab lwm yam.
Alumina yog ib qho tshuaj uas tau npaj los ntawm cov tshuaj tiv thaiv ntawm bauxite lossis industrial aluminium hydroxide. Tsis zoo li calcined alumina, alumina yog npaj los ntawm cov tshuaj tiv thaiv, muaj cov khoom me me, feem ntau yog cov hmoov dawb, muaj kev ntxhib los mos, thiab muaj tshuaj lom neeg ruaj khov thiab hluav taws xob rwb thaiv tsev. Alumina yog dav siv nyob rau hauv kev lag luam tshuaj, ceramics, kev npaj ntawm high-purity txhuas hlau thiab lwm yam teb.
Hauv luv luv, txawm hais tias calcined alumina thiab alumina yog ob qho tib si npaj los ntawm txhuas cov zaub mov, lawv txoj kev npaj thiab cov khoom sib txawv, thiab lawv cov sijhawm thov kuj txawv.
Alumina thiab calcined alumina muaj cov nqi sib txawv vim lawv cov txheej txheem ntau lawm thiab cov khoom sib txawv.
Cov txheej txheem ntau lawm ntawm alumina yog qhov yooj yim, feem ntau yog npaj los ntawm cov tshuaj tiv thaiv ntawm bauxite lossis industrial aluminium hydroxide, yog li nws tus nqi kuj qis, thiab tus nqi tshwj xeeb kuj cuam tshuam los ntawm ntau yam xws li kev lag luam khoom lag luam thiab kev thov, cov nqi tsim khoom, thiab lwm yam.
Cov txheej txheem ntau lawm ntawm calcined alumina yog qhov nyuaj, thiab nws yog ib qho tsim nyog yuav tsum tau calcine ntuj aluminium hydroxide minerals ntawm qhov kub thiab txias, yog li nws cov nqi ntau lawm thiab tus nqi kuj tseem kim. Ntxiv rau cov khoom lag luam thiab kev xav tau thiab cov nqi tsim khoom, tus nqi tshwj xeeb kuj cuam tshuam los ntawm cov khoom xws li qhov zoo thiab purity.
