Milling of Uranium Ores
نویسندگان
چکیده
منابع مشابه
Mineralogy and uranium leaching of ores from Triassic Peribaltic sandstones
The recovery of uranium and other valuable metals from Polish Peribaltic sandstones were examined. The solid-liquid extraction is the first stage of the technology of uranium production and it is crucial for the next stages of processing. In the laboratory experiments uranium was leached with efficiencies 71-100 % by acidic lixiviants. Satisfactory results were obtained for the alkaline leachin...
متن کاملBiogeochemical aspects of uranium mineralization, mining, milling, and remediation
Natural uranium (U) occurs as a mixture of three radioactive isotopes: U, U, and U. Only U is fissionable and makes up about 0.7% of natural U, while U is overwhelmingly the most abundant at greater than 99% of the total mass of U. Prior to the 1940s, U was predominantly used as a coloring agent, and U-bearing ores were mined mainly for their radium (Ra) and/or vanadium (V) content; the bulk of...
متن کاملEnvironmental health risk from past uranium mining and milling activities
In the last few years several European countries undertook closure and environmental remediation of old uranium mining sites. This is the case for Portugal. Due to concerns about public health, environmental radioactivity was recently investigated in a number of counties in the Centre-North of Portugal where the extraction and chemical treatment of uranium ore was carried out, as well as in ref...
متن کاملSolvent extraction of uranium from leach solutions obtained in processing of Polish low-grade ores
Solvent extraction of uranium from acidic and alkaline post-leaching liquors that were obtained by leaching of Polish ores is reported in this paper. The stripping of uranium from organic to aqueous phase was also studied. The synergistic mixture of 2-diethylhexylphosphoric acid (D2EHPA) and tri-n-butylphosphate (0.2 M:0.2 M) was found as a good extracting agent for uranium. Recovery of uranium...
متن کاملChemical and Sr isotopic characterization of North America uranium ores: Nuclear forensic applications
This study reports major, minor, and trace element data and Sr isotope ratios for 11 uranium ore (uraninite, UO2þx) samples and one processed uranium ore concentrate (UOC) from various U.S. deposits. The uraninite investigated represent ores formed via different modes of mineralization (e.g., highand lowtemperature) and within various geological contexts, which include magmatic pegmatites, meta...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the Mining and Metallurgical Institute of Japan
سال: 1961
ISSN: 0369-4194,2185-6729
DOI: 10.2473/shigentosozai1953.77.879_699