Aerobic Oxidation of 5-(Hydroxymethyl)furfural in Ionic Liquids with Solid Ruthenium Hydroxide Catalysts

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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The aerobic oxidation of 5-(hydroxymethyl)furfural was investigated over solid ruthenium hydroxide catalysts in ionic liquids at elevated temperatures and pressures. Several different catalyst supports were tested in combination with various ionic liquids. The best result was obtained in [EMIm][OAc] at 100 °C with 30 bar of oxygen over Ru(OH) x /La2O3 which afforded 48 % of 2,5-furandicarboxylic acid and 12 % of 5-hydroxymethyl-2-furancarboxylic acid. During use the catalysts were found to leach some of the metal inventory. However, the leached Ru species did not contribute to the catalytic activity, thus verifying that the catalytic oxidation proceeded heterogeneously under the applied reaction conditions.

Original languageEnglish
JournalCatalysis Letters
Publication date2012
Volume142
Issue9
Pages1089-1097
ISSN1011-372X
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 4

Keywords

  • Oxidation, Supported ruthenium hydroxide, 5-(Hydroxymethyl) furfural, 2,5-Furandicarboxylic acid, Ionic liquids
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