A Study on Stoichiometry of Complexes of Tributyl Phosphate and Methyl Isobutyl Ketone with Lithium in the Presence of FeCl<sub>3</sub>

周智勇; 秦炜; 费维扬; 李以圭

doi:10.1016/S1004-9541(12)60360-7

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A Study on Stoichiometry of Complexes of Tributyl Phosphate and Methyl Isobutyl Ketone with Lithium in the Presence of FeCl₃

Updated：2026-01-06

- A Study on Stoichiometry of Complexes of Tributyl Phosphate and Methyl Isobutyl Ketone with Lithium in the Presence of FeCl₃
- Chinese Journal of Chemical Engineering Vol. 20, Issue 1, Pages: 36-39(2012)
- Affiliations：
  
  State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University,Beijing,China,100084
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(12)60360-7
  CLC： TQ028.32
- Published：2012
- Accepted：
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[J]. , 2012, 20(1): 36-39.
DOI：

[J]. , 2012, 20(1): 36-39. DOI： 10.1016/S1004-9541(12)60360-7.

摘要

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Abstract

To study the characteristic of liquid-liquid extraction equilibrium of lithium from brine sources

the complexes formed from tributyl phosphate(TBP) and methyl isobutyl ketone(MIBK) with lithium were investigated using FeCl

as coextracting agent.Liquid-liquid extraction reaction mechanisms were proposed and the stoichiometry of tetrachloroferrate(Ⅲ) complex with lithium was obtained by regressing the experimental data.It is found that the stoichiometry of tetrachloroferrate(Ⅲ) to lithium in the complex is 1:1 with either TBP or MIBK as extractant in kerosene.The stoichiometry of the complex of TBP with Li was 1:1 and that of MIBK with Li was 2:1.The formed complexes of TBP and MIBK with lithium are determined to be LiFeCl

·TBP and LiFeCl

·2MIBK

respectively

according to the rule of neutralization.

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A Study on Stoichiometry of Complexes of Tributyl Phosphate and Methyl Isobutyl Ketone with Lithium in the Presence of FeCl3

DOI：10.1016/S1004-9541(12)60360-7

摘要

Abstract

关键词

Keywords

references

A Study on Stoichiometry of Complexes of Tributyl Phosphate and Methyl Isobutyl Ketone with Lithium in the Presence of FeCl₃