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US 12,752,244 B2Granted
Cross-linked mineral membranes
AssigneeUchicago Argonne, LLC
InventorsSeth B. Darling, Zijing Xia
Life of this patent
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Abstract
A mineral membrane and method of making the same are disclosed. The mineral membrane may be made by exfoliating a mineral material to produce a membrane, and cross-linking the membrane.
Claims10
A method of producing a cross-linked mineral membrane, the method comprising:
- exfoliating, by an ion-exchange process, a phyllosilicate mineral material and restacking layers of the phyllosilicate mineral to produce a membrane;
- and
- cross-linking the membrane with a molecular crosslinker comprising a diamine wherein the diamine is ethylendiamine, butanediamine, or hexanediamine.
A method of producing a cross-linked mineral membrane, the method comprising:
- exfoliating a phyllosilicate mineral material and restacking the layers to produce a membrane;
- refluxing the mineral material in a NaCl solution;
- refluxing the mineral material in a LiCl solution;
- sonicating and centrifuging the mineral material;
- and
- vacuum filtrating or casting the mineral material;
- wherein a molecular crosslinker is introduced into the LiCl solution before vacuum filtrating or casting the mineral material.
4 more elements
Dependencies are inferred from the claim text.