Don samun aluminum daga bauxite yawanci yana nufin barin aluminum trioxide daga bauxite. Don cimma manufar akwai hanyoyi uku, waɗanda suka haɗa da: hanyar acid, hanyar alkali, hanyar hade acid-base da hanyar zafi. Duk da haka, ba a amfani da hanyar acid, hanyar hade acid-base da hanyar zafi a cikin masana'antu saboda fa'idodin aminci da tattalin arziki. Ana amfani da hanyar alkaline a cikin samar da masana'antu.

Akwai hanyoyi guda uku na cire sinadarin alumina trioxide ta amfani da hanyar alkaline, wato hanyar calcination, hanyar bayer da kuma hanyar hadewa. Za mu dauki hanyar calcination a matsayin misali.

Hanyar Calcination: Sanya wani adadin calcium carbonate a cikin bauxite, wani abu wanda babban sinadarinsa shine sodium aluminate yana samuwa bayan calcination mai zafi a cikin murhun juyawa. A ƙarshe ana samun alumina bayan narke, lu'ulu'u da gasawa.