[article]
| Titre : |
Investigating the catalytic activity of monoclinic zirconia ; oxidation of benzyl alcohol in aqueous medium at mild conditions |
| Type de document : |
texte imprimé |
| Auteurs : |
M. Sadiq, Auteur ; M. Ilyas, Auteur ; S. Alam, Auteur |
| Année de publication : |
2012 |
| Article en page(s) : |
p. 37-42 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Alcool benzylique -- Oxydation
Benzoïque, Acide
Catalyse
Eaux usées -- Epuration
Surfactants
Zirconium
|
| Index. décimale : |
668.1 Agents tensioactifs : savons, détergents |
| Résumé : |
The oxidation/degradation of benzyl alcohol in artificially contaminated water under atmospheric pressure by molecular oxygen/air over ZrO2(m) catalyst was investigated. Monoclinic phase ZrO2 was synthesized and characterized by modern techniques. Oxidation of benzyl alcohol in aqueous medium was carried out in a typical three necked double walled batch reactor equipped with thermometer and condenser. The rate of oxidation was affected by different reaction parameters such as speed of agitation, catalyst loading, temperature, concentration of substrate solution (46.3–185 mmol/L) and partial pressure of oxygen. Major products were detected with GC and UV spectrophotometer. Optimal conditions were setup for better catalytic activity of ZrO2(m). To sum up, catalytic oxidation of benzyl alcohol in aqueous medium by ZrO2(m) is a useful and cheaper method for the conversion of benzyl alcohol to valuable products as well as for the removal of benzyl alcohol from industrial waste water. |
| Note de contenu : |
- EXPERIMENTAL : Chemicals - Typical procedure for catalyst preparation - Catalytic test and analysis
- RESULTS AND DISCUSSION : Characterization of catalyst - Oxidation alcohol in aqueous medium - Effects of different parameters |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13311 |
in TENSIDE, SURFACTANTS, DETERGENTS > Vol. 49, N° 1 (01-02/2012) . - p. 37-42
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