Ion selective membrane with ionophores
AssigneeMagna Imperio Systems Corp.
InventorsEthan Demeter, Michael James Connor, Jr., Brian M. McDonald
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Abstract
The present disclosure is directed an ion exchange membrane that has an increased affinity for a specific ionic species. The ion exchange membranes disclosed herein include ionophores that can increase ion-selectivity. These ion exchange membranes can be incorporated to various ion-exchange systems or devices that can selectively separate ions of value.
Claims17
An ion exchange membrane comprising at least one layer on a side of the membrane, wherein the at least one layer comprises:
- a polymer;
- and
- an ionophore having an affinity for lithium,
- wherein the ion exchange membrane is configured to selectively separate lithium from an influent stream comprising lithium.
A method of forming an ion exchange membrane configured to selectively separate lithium from an influent stream comprising lithium, comprising:
- mixing an ionophore having an affinity for lithium with a polymeric solution to form a coating composition;
- and
- coating a side of the ion exchange membrane with the coating composition.
An ion-exchange device comprising:
- a pair of electrodes comprising an anode and a cathode;
- a first ion exchange membrane and a second ion exchange membrane between the pair of electrodes,
- wherein at least one of the first or second ion exchange membranes comprises at least one layer on a side of the membrane, wherein the at least one layer comprises a polymer and an ionophore having an affinity for lithium, and wherein the at least one of the first or second ion exchange membranes is configured to selectively separate lithium from an influent stream comprising lithium.
Dependencies are inferred from the claim text.