Extraction kinetics of lithium ions by N,N-bis(2-ethylhexyl)acetamide from simulated brine using rising single drop method

Recovery of lithium ions from salt lake brine is becoming more important because of the rapid increase in projected demand for lithium resources. N,N-bis(2-ethylhexyl)acetamide (N523) is a newly developed extractant that presents good lithium extraction ability and selectivity. In this study, the ki...

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Published inHydrometallurgy Vol. 160; pp. 1 - 5
Main Authors Li, Hui-fang, Li, Li-juan, Shi, Dong, Li, Jin-feng, Ji, Lian-min, Peng, Xiao-wu, Nie, Feng, Song, Fu-gen, Zeng, Zhong-min
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.03.2016
Subjects
Chemical reactions
Diffusion
Extraction kinetics
Hydrometallurgy
Kerosene
Lithium
Lithium ions
Mechanism
N523
New extractant
Salt water
Simulation
Lithium
New extractant
N523
Mechanism
Extraction kinetics
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Summary:Recovery of lithium ions from salt lake brine is becoming more important because of the rapid increase in projected demand for lithium resources. N,N-bis(2-ethylhexyl)acetamide (N523) is a newly developed extractant that presents good lithium extraction ability and selectivity. In this study, the kinetics and mechanism of lithium ion extraction with N523 in kerosene at 298.15K were investigated using the rising single drop method. Results showed that the extraction process is controlled by diffusion and that the chemical reaction occurs at the interfacial area. •The extraction kinetics of lithium by N523 from salt lake brine was investigated by rising single drop method.•The extraction process is controlled by the diffusion.•The chemical reaction takes place at the interfacial area.•The mechanism of the lithium extraction with N523 is revealed.
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ISSN:0304-386X
1879-1158
DOI:10.1016/j.hydromet.2015.11.002