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Issue 3, 2016
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Lignin oxidation and depolymerisation in ionic liquids

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Abstract

The depolymerisation of lignin directly in the black liquor was studied, comparing two ionic liquids as extracting solvents (butylimidazolium hydrogen sulphate and triethylammonium hydrogen sulphate), under oxidising conditions. H2O2 was chosen as the oxidant agent. It was observed that lignins derived from butylimidazolium hydrogen sulphate were more susceptible to degradation. The main degradation products found in the extracted oils were aromatic acids, such as vanillic acid, benzoic acid and 1,2-benzenedicarboxylic acid.

Graphical abstract: Lignin oxidation and depolymerisation in ionic liquids

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Article information


Submitted
19 Aug 2015
Accepted
21 Sep 2015
First published
21 Sep 2015

Green Chem., 2016,18, 834-841
Article type
Paper
Author version available

Lignin oxidation and depolymerisation in ionic liquids

R. Prado, A. Brandt, X. Erdocia, J. Hallet, T. Welton and J. Labidi, Green Chem., 2016, 18, 834
DOI: 10.1039/C5GC01950H

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