3rd ed., Vol. XXIII, 1983, p. 504. Records Collections
solution of sodium carbonate and sodi um Exhibits 1 and 2 show process flow diagrams for open pit and underground acidleach mills. A process flow diagram for an underground alkaline leach mill is shown in Exhibit 3. Most mills use acid leaching, which provides a higher uraniumremoval efficiency. Alkaline leaching is used in the treatment of uranium ores when t he lime content ...