Confronting two nanofiltration membranes for lithium-calcium selective separation in natural brines

Maxime Pontie; Tchikaya Goma Bilongo; Erik Roesink; Joris de Grooth; Christian Dinaux; Ahmed Hannachi; Francheska Charlot; Fatimazahra Oubaid; Sanaa Mrimi; Mehri Shabani

doi:10.1007/s42247-022-00379-7

Confronting two nanofiltration membranes for lithium-calcium selective separation in natural brines

Maxime Pontie^*, Tchikaya Goma Bilongo, Erik Roesink, Joris de Grooth, Christian Dinaux, Ahmed Hannachi, Francheska Charlot, Fatimazahra Oubaid, Sanaa Mrimi, Mehri Shabani

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

4 Citations (Scopus)

Abstract

This work reports the main results of an experimental investigation aimed to improve the purity of lithium salts extracted from natural brines using two different nanofiltration (NF) membranes. The idea is to use NF membrane separation to further increase Li to Ca concentrations’ ratios. A synthetic brine, miming the reextraction water of a solvent extraction operation from Chilean Atacama Salar–inspired brines, was treated in a pilot unit. Two different membranes were investigated and compared for the best performances. The filtration results showed that a layer-by-layer (LbL)-modified hollow-fiber membranes, denoted dNF40 with end-of-Life NF90 flat-sheet membranes, referred to as EoL-NF90, operated at transmembrane pressures of 2 bar and 20 bar, respectively, show a 10 times lower energy consumption for dNF40. Also, both tested NF membranes were capable of selectively enriched permeates in Li versus Ca with a better performances observed for dNF40.

Original language	English
Pages (from-to)	1495-1505
Number of pages	11
Journal	Emergent Materials
Volume	5
Early online date	17 Mar 2022
DOIs	https://doi.org/10.1007/s42247-022-00379-7
Publication status	Published - Oct 2022
Externally published	Yes

Keywords

Natural brines
Lithium recovery
Li to Ca ratio
Hybrid solvent extraction-nanofiltration
Planar NF90
Hollow-fiber dNF40
n/a OA procedure

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1007/s42247-022-00379-7

Cite this

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title = "Confronting two nanofiltration membranes for lithium-calcium selective separation in natural brines",

abstract = "This work reports the main results of an experimental investigation aimed to improve the purity of lithium salts extracted from natural brines using two different nanofiltration (NF) membranes. The idea is to use NF membrane separation to further increase Li to Ca concentrations{\textquoteright} ratios. A synthetic brine, miming the reextraction water of a solvent extraction operation from Chilean Atacama Salar–inspired brines, was treated in a pilot unit. Two different membranes were investigated and compared for the best performances. The filtration results showed that a layer-by-layer (LbL)-modified hollow-fiber membranes, denoted dNF40 with end-of-Life NF90 flat-sheet membranes, referred to as EoL-NF90, operated at transmembrane pressures of 2 bar and 20 bar, respectively, show a 10 times lower energy consumption for dNF40. Also, both tested NF membranes were capable of selectively enriched permeates in Li versus Ca with a better performances observed for dNF40.",

keywords = "Natural brines, Lithium recovery, Li to Ca ratio, Hybrid solvent extraction-nanofiltration, Planar NF90, Hollow-fiber dNF40, n/a OA procedure",

author = "Maxime Pontie and Bilongo, {Tchikaya Goma} and Erik Roesink and {de Grooth}, Joris and Christian Dinaux and Ahmed Hannachi and Francheska Charlot and Fatimazahra Oubaid and Sanaa Mrimi and Mehri Shabani",

note = "Publisher Copyright: {\textcopyright} 2022, Qatar University and Springer Nature Switzerland AG.",

year = "2022",

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doi = "10.1007/s42247-022-00379-7",

language = "English",

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T1 - Confronting two nanofiltration membranes for lithium-calcium selective separation in natural brines

AU - Pontie, Maxime

AU - Bilongo, Tchikaya Goma

AU - Roesink, Erik

AU - de Grooth, Joris

AU - Dinaux, Christian

AU - Hannachi, Ahmed

AU - Charlot, Francheska

AU - Oubaid, Fatimazahra

AU - Mrimi, Sanaa

AU - Shabani, Mehri

PY - 2022/10

Y1 - 2022/10

N2 - This work reports the main results of an experimental investigation aimed to improve the purity of lithium salts extracted from natural brines using two different nanofiltration (NF) membranes. The idea is to use NF membrane separation to further increase Li to Ca concentrations’ ratios. A synthetic brine, miming the reextraction water of a solvent extraction operation from Chilean Atacama Salar–inspired brines, was treated in a pilot unit. Two different membranes were investigated and compared for the best performances. The filtration results showed that a layer-by-layer (LbL)-modified hollow-fiber membranes, denoted dNF40 with end-of-Life NF90 flat-sheet membranes, referred to as EoL-NF90, operated at transmembrane pressures of 2 bar and 20 bar, respectively, show a 10 times lower energy consumption for dNF40. Also, both tested NF membranes were capable of selectively enriched permeates in Li versus Ca with a better performances observed for dNF40.

AB - This work reports the main results of an experimental investigation aimed to improve the purity of lithium salts extracted from natural brines using two different nanofiltration (NF) membranes. The idea is to use NF membrane separation to further increase Li to Ca concentrations’ ratios. A synthetic brine, miming the reextraction water of a solvent extraction operation from Chilean Atacama Salar–inspired brines, was treated in a pilot unit. Two different membranes were investigated and compared for the best performances. The filtration results showed that a layer-by-layer (LbL)-modified hollow-fiber membranes, denoted dNF40 with end-of-Life NF90 flat-sheet membranes, referred to as EoL-NF90, operated at transmembrane pressures of 2 bar and 20 bar, respectively, show a 10 times lower energy consumption for dNF40. Also, both tested NF membranes were capable of selectively enriched permeates in Li versus Ca with a better performances observed for dNF40.

KW - Natural brines

KW - Lithium recovery

KW - Li to Ca ratio

KW - Hybrid solvent extraction-nanofiltration

KW - Planar NF90

KW - Hollow-fiber dNF40

KW - n/a OA procedure

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DO - 10.1007/s42247-022-00379-7

M3 - Article

SN - 2522-5731

VL - 5

SP - 1495

EP - 1505

JO - Emergent Materials

JF - Emergent Materials

ER -

Confronting two nanofiltration membranes for lithium-calcium selective separation in natural brines

Abstract

Keywords

UN SDGs

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