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Title: Process for radioisotope recovery and system for implementing same

Patent ·
OSTI ID:1003002
 [1];  [2];  [1];  [3]
  1. Idaho Falls, ID
  2. Aberdeen, ID
  3. Naperville, IL
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A method of recovering daughter isotopes from a radioisotope mixture. The method comprises providing a radioisotope mixture solution comprising at least one parent isotope. The at least one parent isotope is extracted into an organic phase, which comprises an extractant and a solvent. The organic phase is substantially continuously contacted with an aqueous phase to extract at least one daughter isotope into the aqueous phase. The aqueous phase is separated from the organic phase, such as by using an annular centrifugal contactor. The at least one daughter isotope is purified from the aqueous phase, such as by ion exchange chromatography or extraction chromatography. The at least one daughter isotope may include actinium-225, radium-225, bismuth-213, or mixtures thereof. A liquid-liquid extraction system for recovering at least one daughter isotope from a source material is also disclosed.

Research Organization:
Idaho National Laboratory (INL), Idaho Falls, ID (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC07-99ID13727
Assignee:
Battelle Energy Alliance, LLC (Idaho Falls, ID)
Patent Number(s):
7,597,862
Application Number:
11/533,592
OSTI ID:
1003002
Country of Publication:
United States
Language:
English

References (7)

An improved extraction chromatographic resin for the separation of uranium from acidic nitrate media journal July 2001
Demonstration of the Potential for Designing Extractants with Preselected Extraction Properties: Possible Application to Reactor Fuel Reprocessing book April 1980
Improvements in Thorium-Uranium Separation in the Acid-Thorex Process book April 1980
Heavy Element Separation for Thorium-Uranium-Plutonium Fuels book April 1980
The Extraction of DBP and MBP from Actinides: Application to the Recovery of Actinides from TBP-Sodium Carbonate Scrub Solution book April 1980
Production of actinium-225 for alpha particle mediated radioimmunotherapy journal May 2005
Novel Extraction of Chromatographic Resins Based on Tetraalkyldiglycolamides: Characterization and Potential Applications journal May 2005

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38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY