Perušic, Mitar; Mićić, Vladan; Obrenović, Zoran (Universitatea "Dunarea de Jos' din Galați, 2009)
Today, the most production of alumina is used for aluminum production [1, 2]
(metallurgy alumina), minor production of alumina is used for special purpose, as
fire-resistant materials, electro porcelain and etc., and ...