Tsis tas li ntawd, nws tseem yog qhov yuav tsum tau hais tias qhov xaus sai ntawm alumina hauv cryolite melt yog qhov nrawm, hauv qab ntawm qhov xov hluav taws xob tsis tshua sib sib zog nqus, txheej txheej ntawm qhov hluav taws xob muaj qhov kub zoo rau kev tiv thaiv vaj tse, nws tsis yog hygroscopic hauv huab cua, muaj tsawg dua ya poob thiab fluidity zoo, uas yooj yim rau kev thauj mus los thiab tsis siv neeg pub mis electrolytic ntawm tes. Tag nrho cov kev cia siab nyob ntawm lub zog ntawm alumina.
Lub cev lub zog ntawm alumina yog qhov txawv ntawm lub kaum sab xis, α - Al203 cov ntsiab lus, qhov ntom ntom ntom nti, qhov loj me me, thaj tsam tshwj xeeb cheeb tsam thiab hnav coefficient.
1. Lub kaum ntse ntse ntawm rov qab. Lub kaum sab xis ntawm rov qab alumina yog hais txog lub kaum sab xis tsis sib txig ntawm ntuj txuam nrog cov khoom ntawm lub dav hlau du. Alumina nrog qhov loj dua lub kaum sab xis yog yooj yim dua rau hauv qhov electrolyte, thiab tuaj yeem npog lub plhaub electrolyte zoo hauv cov txheej txheem electrolysis, thiab ya poob yog me me.
2. A-Al2O3 cov ntsiab lus. Cov ntsiab lus ntawm a-Al2O3 hauv alumina qhia txog qib calcination ntawm alumina. Cov qib siab dua calcination yog, cov ntsiab lus ntau-Al2O3 yog. Lub hygroscopicity ntawm alumina ua zuj zus nrog qhov nce ntawm a-Al2O3 cov ntsiab lus. Yog li no, alumina rau electrolysis yuav tsum muaj qee qhov nqi ntawm--Al2O3. Tab sis solubility ntawm a-Al2O3 hauv electrolyte tsis zoo dua li ntawm y-al2o3.
3. Loj ntom. Qhov tuab ntawm alumina yog hais txog qhov hnyav ntawm ib qhov nyhav ntawm cov khoom hauv lub xeev ntuj. Feem ntau, alumina nrog qhov me me ntom ntom ntuav yog qhov zoo rau kev txhim kho hauv electrolyte.
4. Cov seem loj. Lub particle loj ntawm alumina hais txog nws qhov kawg. Lub particle loj ntawm alumina yuav tsum yog qhov tsim nyog. Yog tias nws yuav ntxhib dhau, nws yuav yaj maj mam los sis ua kom haum rau hauv qhov electrolyte; yog tias nws zoo dhau, nws yog ib qho yooj yim ya thiab poob.
5. Qhov tshwj xeeb saum npoo av. Qhov tshwj xeeb hauv cheeb tsam ntawm alumina yog hais txog tag nrho cov cheeb tsam hauv cheeb tsam ntawm qhov tawm ntawm qhov chaw sab nraud sab nraud thiab sab hauv pore sab nraud ntawm cov khoom siv ib qhov hnyav. Nws yog qhov ntsuas tseem ceeb ntawm kev ua ub no ntawm cov tshuaj yeeb dej caw. Alumina nrog qhov loj tshwj xeeb thaj chaw muaj solubility zoo thiab kev ua hauv electrolyte, tab sis nws yog ib qho yooj yim kom nqus noo.
6. Hnav coefficient. Qhov sib coj coefficient yog qhov feem pua ntawm qhov hloov ntawm qhov loj me ntawm cov ntsiab lus hauv cov qauv tom qab lub alumina tau abraded hauv lub txaj fluidized nyob rau hauv qee yam kev mob. Hnav coefficient yog lub cev qhov ntsuas ntawm alumina lub zog.
Raws li cov khoom siv hauv lub cev ntawm alumina, alumina tuaj yeem muab faib ua peb hom: xuab zeb, hmoov nplej thiab nruab nrab. Cov khoom siv lub cev ntawm peb hom alumina no sib txawv heev. Sandy alumina muaj qhov me me dua ntom ntom, qhov loj dua thaj tsam ntawm thaj chaw, me dua rov ua dua lub kaum ntse ntse, qhov me me ntawm a-Al2O3, ntau thiab ntau qhov sib txawv ntxhib hais thiab ntau dua lub zog. Hmoov zoo ib yam li alumina muaj qhov loj dua, qhov ntau me me ntawm thaj chaw, ntau dua-Al2O3, ntau cov khoom zoo thiab lub zog tsis zoo. Cov khoom siv lub cev ntawm alumina nrab muaj nyob nruab nrab ntawm ob. Cov khoom siv lub cev ntawm ntau yam alumina yog qhia nyob rau hauv lub rooj 1-3.
