Extraction of radionuclides from low-grade ores and mill tailings. Final report, February 15, 1980-February 15, 1981
Book
·
OSTI ID:6076184
The purpose of this research project is to develop efficient leaching processes for the extraction of uranium from low-grade ores and for the removal of long half-life radionuclides (radium and thorium) from the leach residue in order to produce innocuous tailings. The present investigation is the first part of a three-year project. It provides kinetic information not heretofore available for uranium leaching by hydrochloric and sulfuric acid solutions and preliminary data for the removal of radionuclides from the leach residues by KCl-solutions. This study has demonstrated that uranium extractions as high as almost 100% can be realized with either HCl or H/sub 2/SO/sub 4/ leach solutions. Initial radium concentration of 245 pCi g/sup -1/ originally in the ore was reduced to 70 and 23 pCi g/sup -1/ in the final tailings of hydrochloric and sulfuric acid leachings.
- OSTI ID:
- 6076184
- Report Number(s):
- NP-1903909; EMD-2-68-3320
- Country of Publication:
- United States
- Language:
- English
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050400* -- Nuclear Fuels-- Feed Processing
052001 -- Nuclear Fuels-- Waste Processing
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12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
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ALKALI METAL COMPOUNDS
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POTASSIUM CHLORIDES
POTASSIUM COMPOUNDS
PROCESSING
RADIUM
REACTION KINETICS
REMOVAL
RESEARCH PROGRAMS
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052001 -- Nuclear Fuels-- Waste Processing
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ACTINIDES
ALKALI METAL COMPOUNDS
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CHLORIDES
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DISSOLUTION
ELEMENTS
EXTRACTION
HALIDES
HALOGEN COMPOUNDS
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
KINETICS
LEACHING
METALS
MILL TAILINGS
ORE PROCESSING
ORES
POTASSIUM CHLORIDES
POTASSIUM COMPOUNDS
PROCESSING
RADIUM
REACTION KINETICS
REMOVAL
RESEARCH PROGRAMS
SEPARATION PROCESSES
SOLID WASTES
SOLVENT EXTRACTION
SULFURIC ACID
TAILINGS
THORIUM
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WASTES