WO2023067101A3 - Method and electrochemical filter cell for extracting lithium - Google Patents

Method and electrochemical filter cell for extracting lithium Download PDF

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Publication number
WO2023067101A3
WO2023067101A3 PCT/EP2022/079283 EP2022079283W WO2023067101A3 WO 2023067101 A3 WO2023067101 A3 WO 2023067101A3 EP 2022079283 W EP2022079283 W EP 2022079283W WO 2023067101 A3 WO2023067101 A3 WO 2023067101A3
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
ions
solvent
lithium
chlorine
Prior art date
Application number
PCT/EP2022/079283
Other languages
French (fr)
Other versions
WO2023067101A2 (en
Inventor
Kagan Ceran
Original Assignee
IIDC International Investment Development Corporation
Fonds Des Fondateurs Sas
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE102021127178.9A external-priority patent/DE102021127178A1/en
Application filed by IIDC International Investment Development Corporation, Fonds Des Fondateurs Sas filed Critical IIDC International Investment Development Corporation
Publication of WO2023067101A2 publication Critical patent/WO2023067101A2/en
Publication of WO2023067101A3 publication Critical patent/WO2023067101A3/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/02—Electrolytic production, recovery or refining of metals by electrolysis of solutions of light metals
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/14—Alkali metal compounds
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/24—Halogens or compounds thereof
    • C25B1/26—Chlorine; Compounds thereof
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/02—Electrodes; Connections thereof
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/06—Operating or servicing
    • C25C7/08—Separating of deposited metals from the cathode

Abstract

A novel electrochemical cell for extraction of lithium chloride from brines and release of pure lithium metal is disclosed, wherein the cell is composed of two porous electrodes positioned inside a housing with a narrow gap between them and preferably a third recovery electrode. The working electrode is impregnated with a compound that selectively binds lithium ions such as various manganese oxide and Prussian Blue analogs. The counter electrode is impregnated with a compound that binds chlorine ions such as silver and polypyrrole. Brine is pumped through the charged electrodes and lithium ions selectively bind to the working electrode and chlorine ions bind to the counter electrode while the majority of other salts pass through. When the working electrode is fully loaded, the brine is replaced with a polar organic solvent and the voltage increased to release the chlorine ions from the counter electrode as chlorine gas. Then the polarity of the electrodes is reversed between the capture electrode and the recovery electrode, and the lithium ions are released into the solvent. The solvent with the insoluble lithium ions is collected in an inert tank and the solvent is drained and evaporated, leaving dry pure lithium metal precipitate. This precipitate is melted, drained into an inert canister, and solidified as pure lithium metal ready for use.
PCT/EP2022/079283 2021-10-20 2022-10-20 Method and electrochemical filter cell for extracting lithium WO2023067101A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021127178.9 2021-10-20
DE102021127178.9A DE102021127178A1 (en) 2020-10-20 2021-10-20 Process and electrochemical filter cell for the production of lithium

Publications (2)

Publication Number Publication Date
WO2023067101A2 WO2023067101A2 (en) 2023-04-27
WO2023067101A3 true WO2023067101A3 (en) 2023-06-15

Family

ID=84361872

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2022/079283 WO2023067101A2 (en) 2021-10-20 2022-10-20 Method and electrochemical filter cell for extracting lithium

Country Status (1)

Country Link
WO (1) WO2023067101A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1263678C (en) * 2001-10-25 2006-07-12 华欧技术咨询及企划发展有限公司 Method for recovering lithium chloride from brine and installation for carrying out said method
US20140076734A1 (en) * 2012-09-19 2014-03-20 Consejo Nacional De Investigaciones Cientificas Y Tecnicas (Conicet) Method and electrochemical device for low environmental impact lithium recovery from aqueous solutions
EP3259794A1 (en) * 2015-02-17 2017-12-27 Evoqua Water Technologies LLC Reduced volume electrochlorination cells and methods of manufacturing same
CN108456893A (en) * 2018-03-21 2018-08-28 太原理工大学 A kind of automatically controlled ion exchange coupling electrolytic water device and technique
CN109440132A (en) * 2018-10-17 2019-03-08 武汉大学 A kind of flow-type electrochemistry proposes lithium system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10648090B2 (en) 2018-02-17 2020-05-12 Lilac Solutions, Inc. Integrated system for lithium extraction and conversion

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1263678C (en) * 2001-10-25 2006-07-12 华欧技术咨询及企划发展有限公司 Method for recovering lithium chloride from brine and installation for carrying out said method
US20140076734A1 (en) * 2012-09-19 2014-03-20 Consejo Nacional De Investigaciones Cientificas Y Tecnicas (Conicet) Method and electrochemical device for low environmental impact lithium recovery from aqueous solutions
EP3259794A1 (en) * 2015-02-17 2017-12-27 Evoqua Water Technologies LLC Reduced volume electrochlorination cells and methods of manufacturing same
CN108456893A (en) * 2018-03-21 2018-08-28 太原理工大学 A kind of automatically controlled ion exchange coupling electrolytic water device and technique
CN109440132A (en) * 2018-10-17 2019-03-08 武汉大学 A kind of flow-type electrochemistry proposes lithium system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JAEHAN LEE ET AL: "Highly selective lithium recovery from brine using a λ-MnO2–Ag battery", PHYSICAL CHEMISTRY CHEMICAL PHYSICS, vol. 15, no. 20, 1 January 2013 (2013-01-01), pages 7690, XP055184456, ISSN: 1463-9076, DOI: 10.1039/c3cp50919b *

Also Published As

Publication number Publication date
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