Method of removing phosphorus impurities from yellowcake

Details Method of removing phosphorus impurities from yellowcake Method of removing phosphorus impurities from yellowcake

C - Chemistry, Metallurgy

22

B

53/212

C22B 60/02 (2006.01) C01B 15/047 (2006.01) C01G 43/01 (2006.01)

Patent

CA 1181242

Abstract: METHOD OF REMOVING PHOSPHORUS IMPURITIES FROM YELLOWCAKE Phosphorus impurities are removed from yellowcake by dissolving it in hydrochloric or sulfuric acid to a U3O8 assay of at least 150 g/l at a pH of 2; pre- cipitating uranium peroxide with hydrogen peroxide while keeping the pH between 2.2 and 2.6 and recovering the uranium peroxide from the phosphorus impurities remaining in solution.

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