Ion exchange process using resins of high loading capacity, high

Details Ion exchange process using resins of high loading capacity, high Ion exchange process using resins of high loading capacity, high

1981-12-04

1983-11-29

Kyle, Deborah L.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

423 17, 75101BE, C01G 5600

Patent

active

044180420

ABSTRACT:
The present invention relates to a process for effectively recovering uranium from dilute solutions, particularly alkaline carbonate leachates from an in-situ leaching process. The uranium complexes are made unstable by adjusting the pH of the leachate to about 6.5 using mineral acids or carbon dioxide. The solution is then passed over ion exchanger resin which induces percipitation of uranium. This non-exchangeable uranium on the resin is then eluted or leached with acid or carbonate solution to obtain eluate of high uranium concentration.

REFERENCES:
patent: 4235850 (1980-11-01), Otto, Jr.
patent: 4280985 (1981-07-01), Yan
patent: 4293528 (1981-10-01), Paul
patent: 4349512 (1982-09-01), Berger

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