TRANSURANIC ELEMENT, COMPOSITION THEREOF, AND METHODS FOR PRODUCING SEPARATING AND PURIFYING SAME

Patent · Tue Sep 19 04:00:00 EDT 1961

OSTI ID:4843648

Wahl, A C

A process of separating plutonium from fission products contained in an aqueous solution is described. Plutonium, in the tri- or tetravalent state, and the fission products are coprecipitated on lanthanum fluoride, lanthanum oxalate, cerous fluoride, cerous phosphate, ceric iodate, zirconyl phosphate, thorium iodate, or thorium fluoride. The precipitate is dissolved in acid, and the plutonium is oxidized to the hexavalent state. The fission products are selectively precipitated on a carrier of the above group but different from that used for the coprecipitation. The plutonium in the solution, after removal of the fission product precipitate, is reduced to at least the tetravalent state and precipitated on lanthanum fluoride, lanthanum phosphate, lanthanum oxalate, lanthanum hydroxide, cerous fluoride, cerous phosphate, cerous oxalate, cerous hydroxide, ceric iodate, zirconyl phosphate, zirconyl iodate, zirconium hydroxide, thorium fluoride, thorium oxalate, thorium iodate, thorium peroxide, uranium iodate, uranium oxalate, or uranium peroxide, again using a different carrier than that used for the precipitation of the fission products.

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-15-027685
• Assignee: U.S. Atomic Energy Commission
• Patent Number(s): US 3000697
• OSTI ID: 4843648
• Country of Publication: United States
• Language: English

Related Subjects

ACTINIDES
CERIUM FLUORIDES
CERIUM HYDROXIDES
CERIUM PHOSPHATES
CHEMISTRY
FISSION PRODUCTS
HYDROGEN PEROXIDES
IMPURITIES
IODATES
LANTHANUM FLUORIDES
LANTHANUM HYDROXIDES
OXALATES
PLUTONIUM
PRECIPITATION
PRODUCTION
SEPARATION PROCESSES
SOLUTIONS
THORIUM COMPOUNDS
THORIUM FLUORIDES
URANIUM COMPOUNDS
WATER
ZIRCONIUM HYDROXIDES
ZIRCONIUM PHOSPHATES