Method for separating and recycling uranium and fluorine form solution
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United States of America Patent
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Aug 16, 2011
Grant Date -
Dec 16, 2010
app pub date -
Dec 29, 2009
filing date -
Jun 10, 2009
priority date (Note) -
Expired
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Abstract
A separation and recycling method for recycling uranium and fluoride from a waste liquid sequentially and separately is disclosed. The method comprises a uranium-recycling process and a fluoride-recycling process. In the uranium-recycling process, an alkali metal compound or monovalent cation and a coagulant aid are added into the waste liquid to promote the precipitation of uranium. In the fluoride-recycling process, an alkaline earth metal compound, a strong acid and a coagulant aid are added into the uranium-removed waste liquid to precipitate fluoride. By means of the method of the present invention, the uranium and fluoride contents of the uranium-removed and fluoride-removed waste liquid are compliant with the effluent standards of the environmental laws.
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