Abstract:
The influence of acidic-basic properties of Sn-Mo-O catalysts on its activity in oxidation of ethanol, isopropanol and secondary butanol at 200 and 260 was investigated. The results show that the activity and selectivity of Sn-Mo-O catalysts in oxidation of alcohols depend on its surface acidic-basic properties. Carbon containing compounds form on basic sites. Acidic centres are responsible for alcohol dehydration. Preparation of Sn-Mo-O catalysts from KOH solution leads to an increase of their activity in alcohol oxidation reaction. By addition of KOH in small amounts, most acidic centres are blocked, while the less acidic centres, responsible for dehydration, are not affected. Increasing the amounts of added KOH lead to complete deactivations of acidic centres.
Page(s):
430-432
DOI:
DOI not available
Published:
Journal: Pakistan Journal of Scientific and Industrial Research, Volume: 34, Issue: 11, Year: 1991