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Alumina Miniplant Operations--calcination of Kaolin in a Direct- fired Rotary Kiln.
Turner-TL; Sawyer-DL Jr.; Hunter-DB; Amey-EB III
MISSING :24 pages
This Bureau of Mines report describes calcination of kaolinitic clay in a direct-fired 2 1/2- by 24-ft rotary kiln at 750 deg and 775 deg c. Methods for preparing kaolin feed materials and characterization of calcined products are discussed. Approximately 99 pct of the alumina in a typical eastern Georgia kaolin was soluble in hcl after calcination at either 750 deg or 775 deg c.
Page last reviewed: May 5, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division