EP 2686292 A1 20140122 - PROCESS OF LOW ENERGY CONSUMPTION FOR PREPARING A CARBOXYLIC ACID ESTER
Title (en)
PROCESS OF LOW ENERGY CONSUMPTION FOR PREPARING A CARBOXYLIC ACID ESTER
Title (de)
ENERGIESPARVERFAHREN FÜR DIE HERSTELLUNG VON CARBONSÄUREESTER
Title (fr)
PROCEDE DE PREPARATION D'UN ESTER D'ACIDE CARBOXYLIQUE DE FAIBLE CONSOMMATION ENERGETIQUE
Publication
Application
Priority
- FR 1152175 A 20110317
- EP 2012053777 W 20120306
Abstract (en)
[origin: WO2012123279A1] The present invention relates to a process for manufacturing ethyl acetate, which consists in reacting ethyl alcohol with acetic acid in the presence of a solid acid catalyst and simultaneously separating the reaction components by distillation in a reactive distillation device comprising at least three zones: a reaction zone in which the reaction takes place simultaneously with the separation by distillation of the components in an upper separating zone and in a lower separating zone, the organic phase obtained in the upper separating zone being isolated and partially refluxed into the reaction zone. The process of the invention is improved as regards firstly the operating energy costs while at the same time obtaining an entirely satisfactory degree of conversion of ethanol, and secondly a column tail stream containing a very low proportion of acid, thereby simplifying the rest of the process and reducing the energy costs thereof.
IPC 8 full level
B01D 3/00 (2006.01); C07C 67/08 (2006.01); C07C 69/14 (2006.01)
CPC (source: EP)
B01D 3/009 (2013.01); C07C 67/08 (2013.01); Y02P 20/10 (2015.11)
Citation (search report)
See references of WO 2012123279A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2012123279 A1 20120920; AR 085420 A1 20131002; BR 112013023249 A2 20161220; CN 103402968 A 20131120; CN 103402968 B 20150812; EP 2686292 A1 20140122; FR 2972725 A1 20120921; FR 2972725 B1 20130322
DOCDB simple family (application)
EP 2012053777 W 20120306; AR P120100868 A 20120316; BR 112013023249 A 20120306; CN 201280011225 A 20120306; EP 12707104 A 20120306; FR 1152175 A 20110317