Kubona aluminium muri bauxite mubisanzwe bivuze kuva muri aluminium trioxide muri bauxite.Kugirango ugere ku ntego hari inzira eshatu zirimo: uburyo bwa aside, uburyo bwa alkali, aside-base ihuriweho hamwe nuburyo bwubushyuhe.Nyamara, uburyo bwa aside, uburyo bwa acide-base hamwe nuburyo bwubushyuhe ntibukoreshwa cyane muruganda kubera umutekano ninyungu zubukungu.Uburyo bwa alkaline bukoreshwa mubikorwa byinganda.

Hariho uburyo 3 bwo gukuramo alumina trioxide ukoresheje uburyo bwa alkaline aribwo buryo bwo kubara, uburyo bwa bayer nuburyo bukomatanyije.Tuzafata uburyo bwo kubara nkurugero.

Uburyo bwo kubara: Gushyira karubone ya calcium karubone muri bauxite, ikintu cyingenzi kigizwe na sodium aluminate ikorwa nyuma yo kubara ubushyuhe bwinshi mumatara azunguruka.Amaherezo alumina iboneka nyuma yo guseswa, korohereza no guteka.