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Title: 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.:
U.S. Dept. of Energy, Washington, D.C. (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1568443
Patent Number(s):
10,315,926
Application Number:
15/728,784
Assignee:
U.S. Department of Energy (Washington, DC)
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}
}

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