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US 2024/0252991 A1Published application
Crown ether modified cation exchange membranes for selective recovery of ionic species and methods of making and using the same
AssigneeUchicago Argonne, LLC
InventorsFeng Gao, Yuepeng Zhang, Lei Cheng, Shi Li, Seth B. Darling, Lu Zhang, Lily A. Robertson
Life of this patent
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Abstract
A membrane for selective separation of a target cation from a source liquid containing the target cation and one or more competing ionic species can include a crown ether polymer layer disposed on a cation exchange membrane. The crown ether polymer layer can include a crown ether capable of selectively binding the target cation and a polymer.
Claims20
A membrane for selective separation of one or more target cations from a source liquid containing the one or more target cations and one or more competing ionic species, comprising:
- a crown ether based layer disposed on a cation exchange membrane, wherein:
- the crown ether based layer comprises one or more crown ether-based building block capable of selectively binding the one or more target cations, and
- the crown ether-based building block is present in the crown ether based layer in an amount of about 5 wt % to about 100 wt %.
Dependencies are inferred from the claim text.