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Selective lithium extraction from brines by chemical reaction with battery materials

Selective lithium extraction from brines by chemical reaction with battery materials
Selective lithium extraction from brines by chemical reaction with battery materials
We demonstrate fast and efficient chemical redox insertion of lithium ions into solid FePO4 from lithium salt solutions contaminated with other cations. The method is illustrated with sodium thiosulfate, Na2S2O3, as a reducing agent that is found to have an optimum redox potential for this reaction. The method shows a very high selectivity for lithium extraction; enrichment in lithium concentration vs. other ions of more than 500 is achieved under the conditions relevant to lithium extraction from brines.
2050-7488
6374-6377
Intaranont, Noramon
fe37b493-3638-4d00-af29-1d6e2a89cc97
Garcia-Araez, Nuria
9358a0f9-309c-495e-b6bf-da985ad81c37
Hector, Andrew L.
f19a8f31-b37f-4474-b32a-b7cf05b9f0e5
Milton, J. Andy
9e183221-d0d4-4ddb-aeba-0fdde9d31230
Owen, John R.
067986ea-f3f3-4a83-bc87-7387cc5ac85d
Intaranont, Noramon
fe37b493-3638-4d00-af29-1d6e2a89cc97
Garcia-Araez, Nuria
9358a0f9-309c-495e-b6bf-da985ad81c37
Hector, Andrew L.
f19a8f31-b37f-4474-b32a-b7cf05b9f0e5
Milton, J. Andy
9e183221-d0d4-4ddb-aeba-0fdde9d31230
Owen, John R.
067986ea-f3f3-4a83-bc87-7387cc5ac85d

Intaranont, Noramon, Garcia-Araez, Nuria, Hector, Andrew L., Milton, J. Andy and Owen, John R. (2014) Selective lithium extraction from brines by chemical reaction with battery materials. Journal of Materials Chemistry A, 2 (18), 6374-6377. (doi:10.1039/c4ta01101e).

Record type: Article

Abstract

We demonstrate fast and efficient chemical redox insertion of lithium ions into solid FePO4 from lithium salt solutions contaminated with other cations. The method is illustrated with sodium thiosulfate, Na2S2O3, as a reducing agent that is found to have an optimum redox potential for this reaction. The method shows a very high selectivity for lithium extraction; enrichment in lithium concentration vs. other ions of more than 500 is achieved under the conditions relevant to lithium extraction from brines.

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More information

Accepted/In Press date: 4 March 2014
e-pub ahead of print date: 27 March 2014
Published date: 2014
Organisations: Geochemistry, Chemistry

Identifiers

Local EPrints ID: 364947
URI: http://eprints.soton.ac.uk/id/eprint/364947
ISSN: 2050-7488
PURE UUID: 04979c8a-41f3-4ca1-a916-8809998f5763
ORCID for Nuria Garcia-Araez: ORCID iD orcid.org/0000-0001-9095-2379
ORCID for Andrew L. Hector: ORCID iD orcid.org/0000-0002-9964-2163
ORCID for John R. Owen: ORCID iD orcid.org/0000-0002-4938-3693

Catalogue record

Date deposited: 15 May 2014 12:11
Last modified: 05 Nov 2019 02:05

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