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US 8,557,201 B1Granted
Method for the recovery of uranium from pregnant liquor solutions
AssigneeRohm and Haas Company
InventorAreski Rezkallah
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Abstract
The present invention is directed to a new more environmentally friendly method for the recovery of uranium from pregnant liquor solutions that comprise high concentration of sulfate by using an amino phosphonic functionalized resin.
Claims5
A method for the recovery of uranium from a pregnant liquor solution comprising:
- i) providing an amino phosphonic functionalized resin;
- ii) providing a pregnant liquor solution comprising sulfate and uranium;
- iii) passing the pregnant liquor solution over the amino phosphonic functionalized resin in acid form to separate the uranium from the pregnant liquor solution;
- and
- iv) eluting the uranium
- wherein the sulfate is present in an amount from 25 to 278 g/L, and wherein the pregnant liquor solution has a pH of from 0 to 4.
3 more elements
Dependencies are inferred from the claim text.