Manganese-catalysed ozonation of glyoxalic acid in aqueous solutions

Authors
Andreozzi, R Marotta, R Sanchirico, R
Citation
R. Andreozzi et al., Manganese-catalysed ozonation of glyoxalic acid in aqueous solutions, J CHEM TECH, 75(1), 2000, pp. 59-65
Citations number
19
Categorie Soggetti
Biotecnology & Applied Microbiology","Chemical Engineering
Journal title
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
ISSN journal
02682575 → ACNP
Volume
75
Issue
1
Year of publication
2000
Pages
59 - 65
Database
ISI
SICI code
0268-2575(200001)75:1<59:MOOGAI>2.0.ZU;2-6
Abstract
Manganese-catalysed ozonation of glyoxalic acid in aqueous solutions has be en investigated in the pH range 2.0-4.0. The addition of manganese ions (Mn (II) or Mn(IV)) to a glyoxalic acid-ozone system allows the substrate to be oxidized through a mechanism different from that reported for uncatalysed ozonation, as underlined by the formation of methanoic acid. The presence o f solid MnO2 results in a further increase in the system reactivity, High l evels of mineralization are generally achieved during glyoxalic acid-cataly sed ozonation, (C) 2000 Society of Chemical Industry.