Methods that purify uranium

Patent · Tue Apr 11 00:00:00 EDT 2023

OSTI ID:1998280

Du, Miting

A method for purifying uranium includes forming primary uranyl peroxide precipitates (UO₂O₂.4H₂O). Forming the primary uranyl peroxide precipitates includes obtaining impure uranium dissolved in an acidic solution, evaporating the acidic solution to increase uranium concentration and to form a concentrated solution, mixing a hydrogen peroxide (H₂O₂) solution with the concentrated solution in a first container, and forming uranyl peroxide precipitates in the first container. The method includes collecting the uranyl peroxide precipitates and washing and drying the uranyl peroxide precipitates. The method also includes converting the washed and dried uranyl peroxide precipitates into triuranium octoxide (U₃O₈).

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-00OR22725
• Assignee: UT-Battelle, LLC (Oak Ridge, TN)
• Patent Number(s): 11,623,870
• Application Number: 17/100,188
• OSTI ID: 1998280
• Country of Publication: United States
• Language: English