Method of producing alumina

Method for the preparation of anhydrous aluminum oxide from aluminum hydroxide during the initial turbulent stage during which the solid oils are then extracted from the upper part of the well-heated furnace and the part of the heat is supplied inside. in the upper part of the cornea, solid oils are released, separated within a recycling cyclone from the gas and re-deposited, partly at least within the turbulent cradle, characterized by the fact that the aluminum hydroxide is precipitated and released into the chemically united water by a multivariate suspension (3,4,5,6,7).