Aluminum Chloride Leaching of Calcined Kaolin Clay.
Bremner-PR; Nicks-LJ; Bauer-DJ
Pres At Metall Soc AIME 113th Ann Meeting Los Angeles, California, 1984 Feb; :11 pages
As part of a program to devise alternative technologies for producing alumina from domestic resources, the Bureau of Mines investigated the leaching of calcined kaolin clay to form basic aluminum chloride solutions. Bench-scale experiments were conducted for single-stage batch leaching with alcl3 solution and three-stage counter current leaching with substoichiometric hcl. Variable conditions of clay calcination and leaching were studied to determine their effects on aluminum extraction and pregnant liquor composition.
Pres. At Metall. Soc. AIME 113th Ann. Meeting, Los Angeles, California, February 26-March 1, 1984