Vapour phase oxidation of acetophenone to benzoic acid over binary oxides of V and Mo

TitleVapour phase oxidation of acetophenone to benzoic acid over binary oxides of V and Mo
Publication TypeJournal Article
Year of Publication2005
AuthorsChumbhale, VR, Paradhy, SA, Anilkumar, M, Kadam, ST, Bokade, VV
JournalChemical Engineering Research and Design
Volume83
Issue1
Pagination75-80
Date PublishedJAN
Type of ArticleArticle
ISSN0263-8762
Keywordsacetophenone, activity, benzoic acid, carbon oxides, oxidation of acetophenone, selectivity
Abstract

Test data for catalytic oxidation of acetophenone into benzoic acid performed at bench scale with V2O5-MoO3 catalyst in a continuous downflow metal reactor are presented. The process parameters such as temperature and flow rate influence the product distribution. The P2O5, B2O3 and Na2O when used as dopant on V2O5-MoO3 catalyst showed marked influence on activity and selectivity. An acidic catalyst like V2O5-MoO3-P2O5 favours formation of benzoic acid while a basic catalyst like V2O5-MoO3-Na2O favours formation of benzaldehyde. The addition of Na2O into V2O5-MoO3 binary oxides formed new phases (NaVMoO6 and Na2V2Mo3O15), which increased Arrhenius activation energy from 18.24 to 31.35 kcal mol(-1).

DOI10.1205/cherd.03206
Type of Journal (Indian or Foreign)

Foreign

Impact Factor (IF)2.525
Divison category: 
Catalysis and Inorganic Chemistry