Selective lithium recovery as lithium carbonate from natural brines
Abstract
Embodiments relate to methods, systems And apparatus tor generating lithium from brine. The brine is heated in a first vessel to greater than 260° C. and CO2 gas is injected mixing with the brine such that the CO2/P is greater than 18 g/atm. The brine is held at greater than 18 g/atm for longer than 20 minutes so that any impurities precipitate as solids leaving only lithium ions and chlorine ions. The brine is moved to a second vessel screening out solid precipitates leaving a brine containing only chlorine and lithium. CO2 gas is injected and mixed with the brine at 260° C. so that the CO2/P is greater than 200 g/atm. The brine is held at greater than 200 g/atm for longer than 20 minutes suppressing the chlorine as dissolved ions while lithium precipitates out as lithium carbonate. The lithium carbonate precipitate is removed from the brine solution.
- Inventors:
- Issue Date:
- Research Org.:
- US Department of Energy (USDOE), Washington DC (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1568443
- Patent Number(s):
- 10315926
- Application Number:
- 15/728,784
- Assignee:
- U.S. Department of Energy (Washington, DC)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01D - COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS
- DOE Contract Number:
- FE0004000
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 10/10/2017
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Nakano, Jinichiro, Nakano, Anna, and Bennett, James P. Selective lithium recovery as lithium carbonate from natural brines. United States: N. p., 2019.
Web.
Nakano, Jinichiro, Nakano, Anna, & Bennett, James P. Selective lithium recovery as lithium carbonate from natural brines. United States.
Nakano, Jinichiro, Nakano, Anna, and Bennett, James P. Tue .
"Selective lithium recovery as lithium carbonate from natural brines". United States. https://www.osti.gov/servlets/purl/1568443.
@article{osti_1568443,
title = {Selective lithium recovery as lithium carbonate from natural brines},
author = {Nakano, Jinichiro and Nakano, Anna and Bennett, James P.},
abstractNote = {Embodiments relate to methods, systems And apparatus tor generating lithium from brine. The brine is heated in a first vessel to greater than 260° C. and CO2 gas is injected mixing with the brine such that the CO2/P is greater than 18 g/atm. The brine is held at greater than 18 g/atm for longer than 20 minutes so that any impurities precipitate as solids leaving only lithium ions and chlorine ions. The brine is moved to a second vessel screening out solid precipitates leaving a brine containing only chlorine and lithium. CO2 gas is injected and mixed with the brine at 260° C. so that the CO2/P is greater than 200 g/atm. The brine is held at greater than 200 g/atm for longer than 20 minutes suppressing the chlorine as dissolved ions while lithium precipitates out as lithium carbonate. The lithium carbonate precipitate is removed from the brine solution.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {6}
}
Works referenced in this record:
Processes for Preparing Highly Pure Lithium Carbonate and Other Highly Pure Lithium Containing Compounds
patent-application, April 2012
- Harrison, Stephen; Blanchet, Robert
- US Patent Application 13/305465; 20120100056