"Amenability of various types of clay minerals to alumina extraction by the lime sinter and lime-soda sinter processes"@en . . . . . . . . . . . . . . . . . . . . . . . "Amenability of various types of clay minerals to alumina extraction by the lime sinter and lime-soda sinter processes" . "Clay Testing." . . . . "Illinois State Geological Survey." . . "Aluminum Metallurgy." . .