PROCESS FOR SEPARATION OF PROTACTINIUM, THORIUM AND URANIUM FROM NEUTRON- IRRADIATED THORIUM

Patent · Wed Jul 31 00:00:00 EDT 1957

OSTI ID:4814204

The process comprises contacting an aqueous nitric acid solution of neutron-irradiated thorium, under net nitrate ion desufficient conditions, witb a solution of a trialkyl phosphnte in an inherent organic diluant, thereby extracting uranium and thorium into resulting organic phase while confining protactinium and fission products to the resulting aqueous phase, scrubbing any small amounts of protactinium and fission products from said organic phase with aqueous solution of an inorganic nitrate salt, separating the protactiniam- containing aqueous phase from uranium and thorium-containing organic phase, and thereafter separating thorium and uranium from the separated organic phase.

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-16-005424
• OSTI ID: 4814204
• Report Number(s): AU 225934
• Resource Relation: Other Information: Orig. Receipt Date: 31-DEC-62
• Country of Publication: Australia
• Language: English

Related Subjects

CHEMISTRY
ALKYL RADICALS
FISSION PRODUCTS
IONS
IRRADIATION
MIXING
NEUTRONS
NITRATES
NITRIC ACID
ORGANIC COMPOUNDS
PHASE DIAGRAMS
PHOSPHATES
PROTACTINIUM
SEPARATION PROCESSES
SOLUTIONS
SOLVENT EXTRACTION
THORIUM
TRACE AMOUNTS
URANIUM
WATER