Manganese-catalysed ozonation of glyoxalic acid in aqueous solutions

被引：2
|
作者：
Andreozzi, R
Marotta, R
Sanchirico, R
机构：
[1] Univ Naples, Fac Ingn, Dipartimento Ingn Chim, I-80125 Naples, Italy
[2] CNR, Ist Ric Combust, Grp Nazl Ric Difesa Rischi Chim Ind & Ecol, I-80125 Naples, Italy
来源：
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY | 2000年 / 75卷 / 01期
关键词：
catalytic ozonation; glyoxalic acid; manganese dioxide; mechanism; aqueous solution; carboxylic acid;
D O I：
10.1002/(SICI)1097-4660(200001)75:1<59::AID-JCTB175>3.0.CO;2-X
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
Manganese-catalysed ozonation of glyoxalic acid in aqueous solutions has been 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 of solid MnO2 results in a further increase in the system reactivity, High levels of mineralization are generally achieved during glyoxalic acid-catalysed ozonation, (C) 2000 Society of Chemical Industry.
引用
收藏
页码：59 / 65
页数：7
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