Title: Product recovery from ionic liquids by solvent-resistant nanofiltration: application to ozonation of acetals and methyl oleate
Authors: Van Doorslaer, Charlie ×
Glas, Daan
Peeters, Annelies
Odena, Angels Cano
Vankelecom, Ivo
Binnemans, Koen
Pascal G.N. Mertens, Pascal
De Vos, Dirk #
Issue Date: 2010
Publisher: Royal Society of Chemistry
Series Title: Green Chemistry vol:12 issue:10 pages:1726-1733
Abstract: In this work we tackle the problematic separation of reaction products from ionic liquid media. Solvent-resistant nanofiltration proves to be an attractive technique for the separation of non-volatile polar products from ionic liquids. In view of the high compatibility between ozone and ionic liquids, two ozone-mediated model reactions were chosen: firstly the oxidation of acetals to esters in the presence of ozone and secondly the ozonation of methyl oleate to monomethyl azelate and pelargonic acid. The objective was to retain the ionic liquid phase by means of a solvent-resistant nanofiltration membrane, while the organic reaction products permeate through the polymeric membrane. First, the ozonations were studied in order to know the characteristic product compositions. Next, a screening of membranes was performed on synthetic product mixtures. The second generation polyimide-based DuraMem (TM) membranes showed the highest rejection, up to 96%, for the evaluated ionic liquids. These DuraMem (TM) membranes also proved suitable for the separation of the products on real reaction mixtures, even in a single filtration step.
ISSN: 1463-9262
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Centre for Surface Chemistry and Catalysis
Molecular Design and Synthesis
× corresponding author
# (joint) last author

Files in This Item:

There are no files associated with this item.

Request a copy


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science