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Novel method of lithium production from brines combining battery material and sodium sulphite as a cheap and environmentally friendly reducing agent

Novel method of lithium production from brines combining battery material and sodium sulphite as a cheap and environmentally friendly reducing agent
Novel method of lithium production from brines combining battery material and sodium sulphite as a cheap and environmentally friendly reducing agent
The growing increase in the global demand for lithium for the production of lithium batteries demands for the development of alternative, fast, environmental-friendly and cost-effective technologies for lithium production. Most lithium resources are in the form of brines, which are concentrated saline solutions containing lithium in the presence of an excess of other ions (primarily, sodium, magnesium and potassium). The use of lithium battery materials has been shown to be highly advantageous for the selective sequestration of lithium from brines, thus achieving the efficient separation of lithium from other ions and, with this, facilitating the production of the highly pure Li2CO3 required for the battery industry. The sequestration of lithium by battery material can be driven by electricity or redox agents, and the later has advantages in terms of the simplicity of the reactor design for large scale production. A critical aspect in the use of redox agents is the cost and environmental compatibility. Here we demonstrate the use of a novel redox reagent, sodium sulphite, that is cheap, non-toxic and induces fast lithium sequestration reactions.
6243-6251
Perez Rodriguez, Sara
13cf3679-8e13-41ee-96a9-d71f776c430c
Milton, James
9e183221-d0d4-4ddb-aeba-0fdde9d31230
Garcia-Araez, Nuria
9358a0f9-309c-495e-b6bf-da985ad81c37
Perez Rodriguez, Sara
13cf3679-8e13-41ee-96a9-d71f776c430c
Milton, James
9e183221-d0d4-4ddb-aeba-0fdde9d31230
Garcia-Araez, Nuria
9358a0f9-309c-495e-b6bf-da985ad81c37

Perez Rodriguez, Sara, Milton, James and Garcia-Araez, Nuria (2020) Novel method of lithium production from brines combining battery material and sodium sulphite as a cheap and environmentally friendly reducing agent. ACS Sustainable Chemistry & Engineering, 8 (16), 6243-6251. (doi:10.1021/acssuschemeng.9b07072).

Record type: Article

Abstract

The growing increase in the global demand for lithium for the production of lithium batteries demands for the development of alternative, fast, environmental-friendly and cost-effective technologies for lithium production. Most lithium resources are in the form of brines, which are concentrated saline solutions containing lithium in the presence of an excess of other ions (primarily, sodium, magnesium and potassium). The use of lithium battery materials has been shown to be highly advantageous for the selective sequestration of lithium from brines, thus achieving the efficient separation of lithium from other ions and, with this, facilitating the production of the highly pure Li2CO3 required for the battery industry. The sequestration of lithium by battery material can be driven by electricity or redox agents, and the later has advantages in terms of the simplicity of the reactor design for large scale production. A critical aspect in the use of redox agents is the cost and environmental compatibility. Here we demonstrate the use of a novel redox reagent, sodium sulphite, that is cheap, non-toxic and induces fast lithium sequestration reactions.

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Submitted date: 2020
Accepted/In Press date: 8 March 2020
e-pub ahead of print date: 8 March 2020
Published date: 27 April 2020

Identifiers

Local EPrints ID: 437966
URI: http://eprints.soton.ac.uk/id/eprint/437966
PURE UUID: f19bef20-69b2-400f-8451-31ed8da830cb
ORCID for Nuria Garcia-Araez: ORCID iD orcid.org/0000-0001-9095-2379

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Date deposited: 24 Feb 2020 17:32
Last modified: 08 Mar 2021 05:01

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