Patent ID: 6458992
Filing Date: 2002-10-01
Classification: C07C

Abstract:
Process for the production of butylacetate by esterification of acetic acid with butanol in the presence of a solid acidic catalyst, accompanied by the distillation separation of the components involved, characterized by introducing acetic acid and butanol in the molar ratio of 1:1 to 1:10, the entire amount of the feed per volume unit of the catalyst being 0.1 to 10 hâˆ’, into a system in which a reaction and separation by distillation take place in first, second and third zones, the reaction running simultaneously with separation by distillation of the compounds of different boiling points in the reaction zone, while the separation of components by distillation takes place in upper and lower separation zones, namely a volatile fraction is separated in the upper separation zone, which, after being cooled to 5 to 80Â° C., is split into water and organic phases, the organic phase being refluxed to the reaction, the ratio of the feed to the refluxed organic phase being 1:1 to 1:20, the reflux representing 60 to 100% of the separated organic phase and butylacetate being withdrawn as a high boiling bottoms product.