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Recovery of protactinium from molten fluoride nuclear fuel compositions

Patent ·
OSTI ID:4346688
; ;

A method is provided for separating protactinium from a molten fluonlde salt composition consisting essentially of at least one alkali and alkaline earth metal fluoride and at least one soluble fluoride of uranium or thorium which comprises oxidizing the protactinium in said composition to the + 5 oxidation state and contacting said composition with an oxide selected from the group consisting of an alkali metal oxide, an alkaline earth oxide, thorium oxide, and uranium oxide, and thereafter isolating the resultant insoluble protactinium oxide product from said composition. (Official Gazette)

Research Organization:
Originating Research Org. not identified
NSA Number:
NSA-29-026773
Assignee:
to United States Atomic Energy Commission
Patent Number(s):
US 3781403
OSTI ID:
4346688
Country of Publication:
United States
Language:
English

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Related Subjects

*PROTACTINIUM-- SEPARATION PROCESSES
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
FLUORIDES
MOLTEN SALT FUELS
N40430 --Chemistry--Radiochemistry & Nuclear Chemistry--Radioactive Waste Treatment
N40450* --Chemistry--Radiochemistry & Nuclear Chemistry-- Reactor Fuel Processing
OXIDES
PROTACTINIUM OXIDES
THORIUM FLUORIDES
THORIUM OXIDES
URANIUM FLUORIDES
URANIUM OXIDES