Invention Grant
- Patent Title: Membrane assisted solvent extraction for rare earth element recovery
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Application No.: US14724985Application Date: 2015-05-29
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Publication No.: US09968887B2Publication Date: 2018-05-15
- Inventor: Ramesh R. Bhave , Daejin Kim , Eric S. Peterson
- Applicant: UT-Battelle, LLC
- Applicant Address: US TN Oak Ridge
- Assignee: UT-BATTELLE, LLC
- Current Assignee: UT-BATTELLE, LLC
- Current Assignee Address: US TN Oak Ridge
- Agency: Warner Norcross & Judd LLP
- Main IPC: B01D61/00
- IPC: B01D61/00 ; B01D61/24 ; C22B59/00 ; C22B7/00 ; B01D69/08 ; C22B3/26 ; B01D71/26

Abstract:
Systems and methods for the recovery of rare earth elements are provided. The systems and methods generally include membrane assisted solvent extraction using permeable hollow fibers having an immobilized organic phase within the pores of the hollow fibers. The permeable hollow fibers are generally in contact with an acidic aqueous feed on one side thereof and a strip solution on another side thereof. The systems and methods generally include the simultaneous extraction and stripping of rare earth elements as a continuous recovery process that is well suited for post-consumer products, end-of-life products, and other recovery sources of rare earth elements.
Public/Granted literature
- US20160346736A1 MEMBRANE ASSISTED SOLVENT EXTRACTION FOR RARE EARTH ELEMENT RECOVERY Public/Granted day:2016-12-01
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