Imperial College London
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Professor Sue Grimes

Faculty of Engineering, Department of Civil and Environmental Engineering

RAEng Chair in Waste & Resource Management
 
 
 
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Contact

 

+44 (0)20 7594 5966s.grimes

 
 
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Location

 

233Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Lateef:2012:10.1002/jctb.3843,
author = {Lateef, H and Gooding, A and Grimes, SM},
doi = {10.1002/jctb.3843},
journal = {Journal of Chemical Technology and Biotechnology},
title = {Use of 1-hexyl-3-methylimidazolium bromideionic liquid in the recovery of lactic acidfrom wine},
url = {http://dx.doi.org/10.1002/jctb.3843},
year = {2012}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - BACKGROUND: Lactic acid has many different applications in a variety of industries including the food, cosmetics, packaging,leather and chemical industries. Current methodologies for lactic acid production are lengthy and complicated and moreefficient methods are being sought. Some organic wastes contain lactic acid and our work investigates the use of ionic liquids(ILs) in the efficient and selective extraction of lactic acid from organic waste using wine as a model system. The ionic liquidwaschosen based on its ability to selectively solvate and separate lactic acid from the remaining bulk waste material.RESULTS: Several ILs including 1-hexyl-3-methylimidazolium chloride (hmimCl), 1-hexyl-3-methylimidazolium bromide(hmimBr), 1-hexyl-3-methylimidazolium iodide (hmimI) and N-hexylpyridinium iodide (hpyrI) have been synthesized in highyield (68-95%) using microwave technology. Lactic acid is soluble in each of the ILs synthesized with optimum results achievedwith hmimBr where lactic acid is miscible in all proportions. HmimBr has been used to successfully separate and extract lacticacid from wine as confirmed by FTIR spectroscopy. Furthermore, it has been possible to recover the IL for recycle in subsequentextraction cycles where the efficiency for the extraction process increases with each recycle.CONCLUSION: HmimBr has been used for the first time in a novel process for the separation and recovery of lactic acid fromwine, as confirmed by FTIR spectroscopy. This work demonstrates a novel processwhich can be applied to the recovery of lacticacid from organic waste.
AU  - Lateef,H
AU  - Gooding,A
AU  - Grimes,SM
DO  - 10.1002/jctb.3843
PY  - 2012///
TI  - Use of 1-hexyl-3-methylimidazolium bromideionic liquid in the recovery of lactic acidfrom wine
T2  - Journal of Chemical Technology and Biotechnology
UR  - http://dx.doi.org/10.1002/jctb.3843
UR  - http://wileyonlinelibrary.com/
ER  -
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