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PROCESS FOR DECONTAMINATING THORIUM AND URANIUM WITH RESPECT TO RUTHENIUM

Patent ·
OSTI ID:4175790

The control of ruthenium extraction in solvent-extraction processing of neutron-irradiated thorium is presented. Ruthenium is rendered organic-insoluble by the provision of sulfite or bisulfite ions in the aqueous feed solution. As a result the ruthenium remains in the aqueous phase along with other fission product and protactinium values, thorium and uranium values being extracted into the organic phase. This process is particularly applicable to the use of a nitrate-ion-deficient aqueous feed solution and to the use of tributyl phosphate as the organic extractant.

Research Organization:
Originating Research Org. not identified
NSA Number:
NSA-14-007466
Assignee:
U.S. Atomic Energy Commission
Patent Number(s):
US 2909406
OSTI ID:
4175790
Country of Publication:
United States
Language:
English

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