Production of uranium peroxide

Patent · Tue May 17 00:00:00 EDT 1977

OSTI ID:7105854

Caropreso, F E; Kreuz, D F

A process is claimed of recovering uranium values as uranium peroxide from an aqueous uranyl solution containing dissolved vanadium and sodium impurities by treating the uranyl solution with hydrogen peroxide in an amount sufficient to have an excess of at least 0.5 parts H/sub 2/O/sub 2/ per part of vanadium (V/sub 2/O/sub 5/) above the stoichiometric amount required to form the uranium peroxide, the hydrogen peroxide treatment is carried out in three sequential phases consisting of I, a precipitation phase in which the hydrogen peroxide is added to the uranyl solution to precipitate the uranium peroxide and the pH of the reaction medium maintained in the range of 2.5 to 5.5 for a period of from about 1 to 60 minutes after the hydrogen peroxide addition; II, a digestion phase in which the pH of the reaction medium is maintained in the range of 3.0 to 7.0 for a period of about 5 to 180 minutes and III, a final phase in which the pH of the reaction medium is maintained in the range of 4.0 to 7.0 for a period of about 1 to 60 minutes during which time the uranium peroxide is separated from the reaction solution containing the dissolved vanadium and sodium impurities. The excess hydrogen peroxide is maintained during the entire treatment up until the uranium peroxide is separated from the reaction medium.

• Assignee: FMC Corp.
• Patent Number(s): US 4024215
• Application Number: TRN: 77-013766
• OSTI ID: 7105854
• Resource Relation: Patent File Date: Filed date 24 Apr 1975
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
URANIUM PEROXIDES
PRODUCTION
AQUEOUS SOLUTIONS
LEACHING
ORE PROCESSING
URANIUM ORES
ACTINIDE COMPOUNDS
DISPERSIONS
DISSOLUTION
MIXTURES
ORES
OXYGEN COMPOUNDS
PEROXIDES
PROCESSING
SEPARATION PROCESSES
SOLUTIONS
URANIUM COMPOUNDS
050400* - Nuclear Fuels- Feed Processing