Akwai nau'ikan albarkatun kasa guda biyu don samar da alumina da aka kunna, ɗayan shine "fast foda" wanda aka samar ta hanyar gwaji ko dutsen Bayer, ɗayan kuma an samar da shi ta hanyar aluminate ko gishiri na aluminum ko duka biyu a lokaci guda. X, ρ-alumina da samar da X, ρ-alumina X, ρ-alumina shine babban r ...
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