Recovery of uranium from phosphate ores
AssigneeMobil Oil Corporation
InventorGeorge C. Johnson
Life of this patent
Estimating the term…
Abstract
Uranium is recovered from phosphate ore in a process comprising making phosphoric acid, partially reacting same with NH.sub.3, removing aluminum with dilute sodium carbonate and sodium bicarbonate and extracting the uranium with a concentrated solution of said carbonates.
Claims5
A method for recovering uranium from ammonium precipitate containing same which comprises (1) treating, at from ambient temperatures to about 150.degree. C., the ammonium precipitate with a dilute solution of sodium carbonate and sodium bicarbonate to remove substantially the portion of the said precipitate containing ions other than uranium, the total carbonate content of said solution being from about 0.05 to about 10 parts per 10 parts of said precipitate, and (2) treating, at from ambient temperatures to about 150.degree. C., the remaining precipitate with a concentrated solution of sodium carbonate and sodium bicarbonate to remove uranium, the total carbonate content in said solution being from about 40 to about 100 parts per 10 parts of the original precipitate.
Dependencies are inferred from the claim text.