Agglomeration of alumina material

摘要

PCT No. PCT/AU93/00683 Sec. 371 Date Aug. 22, 1994 Sec. 102(e) Date Aug. 22, 1994 PCT Filed Dec. 24, 1993 PCT Pub. No. WO94/14988 PCT Pub. Date Jul. 7, 1994A process for the agglomeration of powder or dust of alumina containing material (herein referred to as "alumina powder"), wherein an aqueous slurry of the alumina powder is formed, the slurry containing a sufficient quantity of an inorganic binder comprising a polymer form of a hydroxy salt of aluminum. The slurry is subjected to a spray drying operation to form agglomerated granules of the alumina powder, and the granules then are calcined at an elevated temperature for their consolidation. The alumina containing material comprises Al2O3.nH2O, wherein n is in the range of from 0 to 3.