Granted Patent
B2
US 12,612,901 · App. 18/488,504 · Granted Apr 28, 2026
Process for recovering lithium from brines
Assignee:
TERRALITHIUM LLC
F03G7/04C02F1/60C02F1/64C02F5/02C09K5/04C09K5/048C02F1/52C02F1/74C02F2101/10C02F2101/203C02F2103/06C02F2303/22Y02E10/10
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Abstract
This invention relates to a method for producing geothermal power using geothermal brines while producing a reduced silica and iron brine having improved injectivity. The resulting compositions include a composition with reduced silica, iron, and lithium having reduced quantity of total suspended solids.
Claims (14)
1 . A process for recovering lithium from a brine, the process comprising:
providing a treated brine comprising lithium to a column for capturing lithium from the treated brine, wherein the treated brine composition has a pH of about 4.0 to about 6.0 that has less than about 20 ppm by weight of silica, less than about 20 ppm by weight of iron;
contacting the treated brine with an extraction material in the column to selectively capture lithium to produce a lithium complex;
passing water through the column to produce a lithium-rich stream comprising the lithium complex, wherein the lithium-rich stream comprises a higher concentration of lithium than the treated brine; and
recovering lithium from the lithium-rich stream.
2 . The process of claim 1 , wherein recovering lithium from the lithium-rich stream comprises supplying the lithium-rich stream to a filter to separate solids.
3 . The process of claim 1 , wherein the extraction material comprises a granulated sorbent based on lithium alumina hydroxide.
4 . The process of claim 1 , wherein providing the treated brine comprises flashing a brine to precipitate silica to produce a flashed brine comprising a reduced concentration of silica.
5 . The process of claim 4 , further comprising separating precipitated silica from the flashed brine.
6 . The process of claim 1 , further comprising oxidizing the brine to produce precipitates comprising at least one of magnesium, iron, and manganese.
7 . The process of claim 1 , further comprising acidifying the lithium-rich stream with a salt prior to recovering lithium.
8 . The process of claim 7 , wherein the salt is aluminum chloride.
9 . The process of claim 7 , further comprising adjusting a pH of the lithium-rich stream to a range from 4 to 6.
10 . The process of claim 1 , wherein the lithium complex is lithium chloride.
Assignments (5)
CORRECTIVE ASSIGNMENT TO CORRECT THE SPELLING OF THE LAST NAME OF THE FIRST INVENTOR PREVIOUSLY RECORDED ON REEL 065870 FRAME 0581. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT.
Recorded Jan 11, 2024
From: HARRISON, STEPHEN; BURBA, JOHN L, III
To: SIMBOL INC.
Reel/Frame 066271/0651 →
CHANGE OF NAME
Recorded Dec 14, 2023
From: ALGER ALTERNATIVE ENERGY LLC
To: ALL AMERICAN LITHIUM LLC
Reel/Frame 066006/0201 →
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Dec 14, 2023
From: HARRSION, STEPHEN; BURBA, JOHN L., III
To: SIMBOL INC.
Reel/Frame 065870/0581 →
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Dec 14, 2023
From: SIMBOL INC.
To: ALGER ALTERNATIVE ENERGY, LLC
Reel/Frame 065870/0671 →
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Dec 14, 2023
From: ALL AMERICAN LITHIUM LLC
To: TERRALITHIUM LLC
Reel/Frame 065870/0790 →
Continuity (9)
Continuation
12822580
· Jun 24, 2010
Continuation In Part
12823000
· Jun 24, 2010
Provisional Application
61873212
· Sep 3, 2013
Provisional Application
61239275
· Sep 2, 2009
Provisional Application
61220000
· Jun 24, 2009
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