Mineralogy and uranium leaching of ores from Triassic Peribaltic sandstones

Abstract The recovery of uranium and other valuable metals from Polish Peribaltic sandstones were examined. The solid–liquid extraction is the first stage of the tech-nology of uranium production and it is crucial for the next stages of processing. In the laboratory experiments ura-nium was leached with efficiencies 71–100 % by acidic lixiviants. Satisfactory results were obtained for the alka-line leaching process. Almost 100 % of uranium was lea-ched with alkaline carbonate solution. In post leaching solutions only uranium and small amounts of vanadium were present