Formation of acetic acid by aqueous-phase oxidation of ethanol with air in the presence of a heterogeneous gold catalyst

Claus H. Christensen, Betina Jørgensen, Jeppe Rass Hansen, Kresten Egeblad, Robert Madsen, Søren Kegnæs, Stine M. Hansen, Mike R. Hansen, Hans C. Andersen

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Wine into vinegar: It is possible to selectively oxidize ethanol into acetic acid in aqueous solution with air as the oxidant and a heterogeneous gold catalyst (see TEM image of supported gold particles) at temperatures of about 423 K and O2 pressures of 0.6 MPa. This reaction proceeds readily in aqueous acidic media with yields of up to 90 % and CO2 as the only major by-product.
Original languageEnglish
JournalAngewandte Chemie International Edition
Volume45
Issue number28
Pages (from-to)4648-4651
ISSN1433-7851
DOIs
Publication statusPublished - 2006

Keywords

  • heterogeneous catalysis
  • acetic acid
  • oxidation
  • bioethanol
  • gold

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