Devices for efficient sorbent utilization in lithium extraction
The present disclosure relates to the extraction of lithium from liquid resources such as natural and synthetic brines, leachate solutions from clays and minerals, and recycled products.
1. A device for lithium extraction from a liquid resource, the device comprising:
(i) a sorbent material that selectively absorbs lithium from the liquid resource; and
(ii) one or more filter banks;
wherein each of the one or more filter banks comprises:
(a) two filter plates that, when placed together, form a compartment;
(b) one or more permeable partitions, wherein the one or more permeable partitions line the interior of the compartment and contain the sorbent material;
(c) one or more inlets and one or more outlets, wherein the one or more inlets and the one or more outlets are each configured to allow fluid to flow through the one or more filter banks.
2. The device of claim 1 , further comprising one or more flow distributors that are each optionally joined to the surface of one or both of the two filter plates to form the compartment.
3. The device of claim 2 , wherein one or more of said flow distributors comprises a flow distribution surface, and
(a) wherein said flow distribution surface is deformable, and
(b) wherein the deformation of said flow distribution surface mechanically compresses the sorbent material.
4. The device of claim 3 , wherein mechanical compression force is applied with a pressure of about 1 psi to about 250 psi.
5. The device of claim 2 , wherein the device is configured to maintain fluid communication through the sorbent material, the one or more permeable partitions, the one or more flow distributors, the two filter plates, and one or more fluid conduits.
6. The device of claim 5 , wherein fluid flow to and from the one or more filter banks and the one or more fluid conduits occurs from one or more locations in the one or more filter banks.
7. The device of claim 2 , wherein the one or more flow distributors each comprise a textured flow distribution surface, said textured flow distribution surface comprising textured flow distribution shapes comprising grooves, dimples, pips, protrusions, stay bosses, raised surfaces, or any other geometric shape that protrudes from the surface of one or both of said two filter plates when said one or more flow distributors is joined to the surface thereof.
8. The device of claim 7 , wherein the one or more permeable partitions lie on top of said textured flow distribution surface such that a void exists between the surface of the filter plate and the one or more permeable partitions, wherein the void is configured for use as a fluid conduit.
9. The device of claim 8 , wherein the thickness of said void is from about 2 mm to about 15 mm, wherein the thickness of said void is defined as the distance between the bottom of the filter plate and the one or more permeable partition.
10. The device of claim 1 , wherein two permeable partitions line the interior of the compartment and each permeable partition is positioned against each of the two filter plates.
11. The device of claim 10 , wherein the ratio of thickness to cross-sectional length of each of the one or more filter banks is independently from about 1:1 to about 1:500, wherein the thickness of each of said one or more filter banks is defined as the average distance between the permeable partition positioned against the first of the two filter plates and the permeable partition positioned against the second of the two filter plates, and wherein the cross-sectional length of each of the one or more filter banks is the longest distance that is geometrically orthogonal to said thickness.
12. The device of claim 11 , wherein the thickness of each of said one or more filter banks is from about 5 to about 75 mm and wherein the cross-sectional length of each of said one or more filter banks is from about 5 to about 5000 mm.
13. The device of claim 1 , wherein the two filter plates each independently have an approximate cross-sectional length of about 100, 230, 320, 400, 470, 500, 630, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500, 2000, 3000, 4000, or 5000 mm.
14. The device of claim 1 , wherein said device comprises from 1 to about 250 filter banks.
15. The device of claim 1 , wherein the device is configured to allow fluid to flow into the one or more filter banks from a single external fluid conduit that is an inlet to each filter bank, said fluid contacts the sorbent material, and said fluid flows out of the one or more filter banks through a single external fluid conduit that is an outlet to each filter bank, and wherein the inlet and the outlet fluid conduits are on opposing geometric corners of each filter bank.
16. The device of claim 1 , wherein the device is configured to allow fluid to flow into the one or more filter banks from two or more external fluid conduits that are inlets to each filter bank, said fluid contacts the sorbent material, and said fluid flows out of the one or more filter banks through two or more external fluid conduits.
17. The device of claim 16 , wherein the pressure of fluid flowing through the one or more filter banks is from about 0.1 psi to about 100 psi.
18. The device of claim 16 , further comprising a manual, semi-automatic, or automatic plate shifter; a drip tray; a cake discharge tray; an end plate; a blind plate; or combinations thereof.
19. The device of claim 1 , configured to allow a gas to flow through the one or more filter banks.
20. The device of claim 1 , comprising a series of at least two filter banks, wherein at least two of said filter banks are joined together with structural supports, and held together with a hydraulic force, to form a filter press.
21. The device of claim 20 , wherein the second filter bank and any additional filter banks are created with one or more additional interior filter plates, wherein said additional interior filter plates comprise permeable partitions, inlets, outlets, and optional flow distributors, configured to form two filter banks on either side of said additional interior filter plate when filter plates are placed on either said of said interior filter plate.
22. The device of claim 20 , wherein each filter bank comprises two flow distributors each comprising a flow distribution surface, and wherein one of the two flow distribution surfaces is a deformable flow distribution surface and the second of the two flow distribution surfaces is not deformable, and wherein deformation of the deformable flow distribution surface mechanically compresses the sorbent material.
23. The device of claim 20 , wherein the filter press is configured to flow fluid through a fluid inlet and out a fluid outlet, wherein the fluid inlet and fluid outlet are on opposite ends of the filter press.
24. The device of claim 20 , wherein each of the filter plates are independently gasketed, non-gasketed, recessed, plate- and frame, membrane squeeze, diaphragm squeeze, or combinations thereof.
25. The device of claim 20 , wherein the device is configured to maintain uniform fluid flow to and from each filter bank, and wherein the pressure required to flow said fluid across each filter bank differs by less than 10 psi across any two filter banks in said device.
26. The device of claim 20 , wherein the device is configured to maintain uniform fluid flow to and from each filter bank, and wherein the pressure required to flow said fluid across each filter bank differs by 25 psi or less across all filter banks in said device.
27. The device of claim 26 , wherein the configuration to uniformly distribute the flow of fluid through the sorbent material results in a lower volume of water required to remove entrained brine from the sorbent material when washing said sorbent material with water.
28. The device of claim 1 , wherein the sorbent material that selectively absorbs lithium from the liquid resource comprises an ion exchange material that exchanges lithium ions and hydrogen ions, wherein said ion exchange material comprises LiFePO 4 , LiMnPO 4 , Li 2 MO 3 (M=Ti, Mn, Sn), Li 4 Ti 5 O 12 , Li 4 Mn 5 O 12 , LiMn 2 O 4 , Li 1.6 Mn 1.6 O 4 , LiMO 2 (M=Al, Cu, Ti), Li 4 TiO 4 , Li 7 Ti 11 O 24 , Li 3 VO 4 , Li 2 Si 3 O 7 , Li 2 CuP 2 O 7 , modifications thereof, solid solutions thereof, or a combination thereof.
29. The device of claim 1 , wherein the sorbent material that selectively absorbs lithium from the liquid resource comprises a crystalline lithium salt aluminate, a lithium aluminum intercalate, LiCl·2Al(OH) 3 , crystalline aluminum trihydroxide (Al(OH) 3 ), gibbsite, beyerite, nordstrandite, alumina hydrate, bauxite, amorphous aluminum trihydroxide, activated alumina layered lithium-aluminum double hydroxides, LiAl 2 (OH) 6 Cl, combinations thereof, compounds thereof, or solid solutions thereof.
30. The device of claim 1 , wherein the device is configured to maintain uniform fluid flow to and from each filter bank.