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:2009,
author = {Lateef, H and Grimes, S and Kewcharoenwong, P and Feinberg, B},
journal = {Journal of Chemical Technology and Biotechnology},
pages = {1818--1827},
title = {Separation and recovery of cellulose and ligninusing ionic liquids: a process for recoveryfrom paper-based waste},
volume = {84},
year = {2009}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - BACKGROUND: The production of paper makes use of cellulose and lignin as a rawmaterial, and almost all cellulose and ligninproduction comes from raw wood materials, contributing to deforestation and resulting in potential environmental harm. It istherefore beneficial to develop technologies for cellulose and lignin recovery for re-use and sustainability of resources.RESULTS: Three imidazolium based ionic liquids (ILs), 1-(2-cyanoethyl)-3-methylimidazolium bromide (cyanoMIMBr), 1-propyl-3-methylimidazolium bromide (propylMIMBr) and 1-butyl-3-methylimidazolium chloride (butylMIMCl), were synthesised bymicrowave technology and fully characterised bymass spectrometry, thermogravimetric differential scanning calorimetry, thinlayer chromatography, nuclear magnetic resonance and Fourier transform infrared spectroscopies. Cellulose and lignin weresoluble in all three ILs with solubility being greatest in cyanoMIMBr. Regeneration of cellulose and lignin was achieved fromsaturated solutions of cellulose in IL and lignin in IL for all three ILs. The ILs propylMIMBr and butylMIMBr have been used forthe first time in the separation and recovery of cellulose and lignin and regeneration of the IL from a mixture of cellulose andlignin in IL. FTIR analysis confirms successful recovery.CONCLUSIONS: This work demonstrates the ability of ILs to separate and recover cellulose and lignin from a mixed system.
AU  - Lateef,H
AU  - Grimes,S
AU  - Kewcharoenwong,P
AU  - Feinberg,B
EP  - 1827
PY  - 2009///
SP  - 1818
TI  - Separation and recovery of cellulose and ligninusing ionic liquids: a process for recoveryfrom paper-based waste
T2  - Journal of Chemical Technology and Biotechnology
VL  - 84
ER  -
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