Materials And Metallurgy: Crushing And Grinding
Process steps which are basic to all mills, however, are crushing, grinding, leaching wherein the uranium is dissolved from the crushed ore, and recovery. The latter step involves the selective re moval of the uranium from the leaching solution for prepara tion of the concentrated product. Thorium 230 and uranium 238, whose MPCw's are 200.Flowsheet development for gold orebodies,crushing, followed by dump or heap leaching with cyanide. gold recovery is usually around 80 , but can be as low as 60 . recoveries can be improved to by grinding to fairly fine particle size, gravity separation, cyanidation and flotation, all of which increase capital and operating costs. In some cases, oxidation of sulphide.