Proceedings of the 2016 3rd International Conference on Materials Engineering, Manufacturing Technology and Control

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Recovery of Lithium Using a novel amide-neutral phosphorus-based extraction system with response surface methodology optimization

Authors
Lianmin Ji, Lijuan Li, Dong Shi, Jinfeng Li, Defang Xu, Xuexue Song, Zhiqi Liu, Feng Nie, Zhongmin Zeng, Fugen Song
Corresponding Author
Lianmin Ji
Available Online April 2016.
DOI
10.2991/icmemtc-16.2016.17How to use a DOI?
Keywords
Lithium extraction; Highly concentrated solution; Response surface methodology; Amide-neutral phosphorus-based extractant
Abstract

Tributyl phosphate (TBP) is a popular neutral organophosphorus extractant, but its high concentration may result in severe corrosion of equipment. In this study, lithium was extracted using a novel system comprising N,N-(2-ethylhexyl)-3-oxobutanamide/TBP/sulfonated kerosene/FeCl3. A series of saturated magnesium chloride (MgCl2) solutions mixed with different lithium chloride monohydrate concentrations were used for single-factor experiments to extract lithium. A saturated MgCl2 solution with 2.22 g-L 1 Li+ characteristically exhibited a high Mg to Li ratio and used for orthogonal tests. The volume ratio of the organic to aqueous phases, molar ratio of Fe to Li, and volume concentration of TBP were investigated and systematically optimized through response surface methodology. A total of 94.55% lithium were extracted under the following optimized condition: an organic/aqueous ratio of 2.60, [Fe]/[Li] of 1.38, and TBP vol. % of 31.37%. The results showed the system enhanced the lithium extraction efficiency and also significantly decreased the TBP concentration.

Copyright
© 2016, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2016 3rd International Conference on Materials Engineering, Manufacturing Technology and Control
Series
Advances in Engineering Research
Publication Date
April 2016
ISBN
10.2991/icmemtc-16.2016.17
ISSN
2352-5401
DOI
10.2991/icmemtc-16.2016.17How to use a DOI?
Copyright
© 2016, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

risenwbib
TY  - CONF
AU  - Lianmin Ji
AU  - Lijuan Li
AU  - Dong Shi
AU  - Jinfeng Li
AU  - Defang Xu
AU  - Xuexue Song
AU  - Zhiqi Liu
AU  - Feng Nie
AU  - Zhongmin Zeng
AU  - Fugen Song
PY  - 2016/04
DA  - 2016/04
TI  - Recovery of Lithium Using a novel amide-neutral phosphorus-based extraction system with response surface methodology optimization
BT  - Proceedings of the 2016 3rd International Conference on Materials Engineering, Manufacturing Technology and Control
PB  - Atlantis Press
SP  - 86
EP  - 95
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmemtc-16.2016.17
DO  - 10.2991/icmemtc-16.2016.17
ID  - Ji2016/04
ER  -