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Structures comprised of mixtures of corindon (α-Al2O3) and calcium hexaluminate (CaAl12O19 or CA6) show high refractoriness and chemical resistance. This article addresses the in situ formation of porous alumina-CA6 beads (approximately 2-3 mm) prepared by an extrusion-dripping process with sodium alginate (SA) as a coagulation agent. The best conditions for a simultaneous dispersion of aqueous mixtures...