The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 2015
Filed:
Oct. 28, 2011
Ramesh R. Bhave, Knoxville, TN (US);
Melanie M. Debusk, Knoxville, TN (US);
Guillermo D. Delcul, Powell, TN (US);
Laetitia H. Delmau, Oakridge, TN (US);
Chaitanya K. Narula, Knoxville, TN (US);
Ramesh R. Bhave, Knoxville, TN (US);
Melanie M. DeBusk, Knoxville, TN (US);
Guillermo D. DelCul, Powell, TN (US);
Laetitia H. Delmau, Oakridge, TN (US);
Chaitanya K. Narula, Knoxville, TN (US);
UT-Battelle, LLC, Oak Ridge, TN (US);
Abstract
A system and method for the extraction of americium from radioactive waste solutions. The method includes the transfer of highly oxidized americium from an acidic aqueous feed solution through an immobilized liquid membrane to an organic receiving solvent, for example tributyl phosphate. The immobilized liquid membrane includes porous support and separating layers loaded with tributyl phosphate. The extracted solution is subsequently stripped of americium and recycled at the immobilized liquid membrane as neat tributyl phosphate for the continuous extraction of americium. The sequestered americium can be used as a nuclear fuel, a nuclear fuel component or a radiation source, and the remaining constituent elements in the aqueous feed solution can be stored in glassified waste forms substantially free of americium.