Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Radioactive metal
Patent
1979-03-19
1981-11-24
Kyle, Deborah L.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Radioactive metal
210634, 423 16, 423253, 423260, C01G 4301, B01D 1104
Patent
active
043024270
ABSTRACT:
Uranium values are recovered as uranyl peroxide from wet process phosphoric acid by a solvent extraction-precipitation process. The preferred form of this process comprises a first solvent extraction with DEPA-TOPO followed by reductive stripping of the extractant with Fe.sup.++ - containing phosphoric acid. After reoxidation, the uranium-containing aqueous stripping solution is extracted again with DEPA-TOPO and the pregnant organic is then stripped with a dilute ammonium carbonate solution. The resulting ammonium uranyl tricarbonate solution is then acidified, with special kerosene treatment to prevent wax formation, and the acidified solution is reacted with H.sub.2 O.sub.2 to precipitate a uranyl peroxide compound.
REFERENCES:
patent: 2819145 (1958-01-01), McCollough et al.
patent: 2859094 (1958-11-01), Schmitt et al.
patent: 3052513 (1962-09-01), Crouse
patent: 3052514 (1962-09-01), Schmitt
patent: 3100682 (1963-08-01), Kelmers
patent: 3711591 (1973-01-01), Hurst et al.
patent: 3737513 (1973-06-01), Wiewiorowski
patent: 3835214 (1974-09-01), Hurst et al.
patent: 3966872 (1976-06-01), Sundar
patent: 3966873 (1976-06-01), Elikan et al.
patent: 4002716 (1977-01-01), Sundar
patent: 4024215 (1977-05-01), Caropreso et al.
patent: 4087512 (1978-05-01), Reese et al.
patent: 4105741 (1978-08-01), Wiewiorowski
Caropreso et al., "Hydrogen Peroxide Precipitation of Uranium . . . ", Trans. Soc. Mining Eng. AIME 254(4), pp. 281-284 (1973).
Galkin et al., Technology of Uranium, AEC-tr-6638, pp. 170-187, 1964.
Harrington et al., Eds., Uranium Production Technology, Van Nostrand Company, Inc., Princeton, N.J., 1959, pp. 157-159.
Hurst, "Recovery of Uranium from Wet-Process Phosphoric Acid" I & EC Process Design and Development, vol. II, No. 1, pp. 122-128 (1972).
Shabir, U.S. Bureau of Mines Report of Investigations-RI 7931 (1974).
Hurst, "Recovering Uranium from Wet-Process Phosphoric Acid", Chem. Eng. (Jan. 3, 1977) pp. 56-57.
Hurst, ORNL-TM-2522 (1960).
Hurst, ORNL-2952 (1960).
Bunus, "Synergistic Extraction Of Uranium . . . ", J. Inorg. Nucl. Chem., vol. 40, pp. 117-121 (1977).
Berry William W.
Henrickson Angus V.
International Minerals & chemical Corporation
Kyle Deborah L.
LandOfFree
Recovery of uranium from wet-process phosphoric acid does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Recovery of uranium from wet-process phosphoric acid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recovery of uranium from wet-process phosphoric acid will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2174575