EP 2560943 A2 20130227 - PROCESS FOR PREPARING CARBOXYLIC ESTERS BY REACTIVE DISTILLATION
Title (en)
PROCESS FOR PREPARING CARBOXYLIC ESTERS BY REACTIVE DISTILLATION
Title (de)
VERFAHREN ZUR HERSTELLUNG VON CARBONSÄUREESTERN DURCH REAKTIVDESTILLATION
Title (fr)
PROCÉDÉ DE PRODUCTION D'ESTERS D'ACIDES CARBOXYLIQUES PAR DISTILLATION RÉACTIVE
Publication
Application
Priority
- EP 10160353 A 20100419
- EP 2011056189 W 20110419
- EP 11714782 A 20110419
Abstract (en)
[origin: WO2011131643A2] In a process for preparing carboxylic esters by transesterification, a first feed stream comprising a first carboxylic ester, e.g. methyl formate, is introduced at the side into a reaction column at a first inlet located between the top and the bottom of the reaction column and a second feed stream comprising a first alcohol, e.g. ethanol, is introduced at the side into the reaction column at a second inlet located above the first inlet and the feed streams are reacted in a reaction zone of the reaction column to form a second carboxylic ester and a second alcohol. The first alcohol has a higher molecular weight than the second alcohol. A product fraction comprising the second carboxylic ester and unreacted first carboxylic ester is taken off at an offtake located above the second inlet. A bottom fraction comprising the second alcohol and unreacted first alcohol is taken off at the bottom of the reaction column. The product fraction is separated by distillation at a pressure which is different from the pressure in the reaction column into second carboxylic ester and a fraction containing unreacted first carboxylic ester and the fraction containing unreacted first carboxylic ester is at least partly recirculated to the reaction zone.
IPC 8 full level
C07C 67/03 (2006.01)
CPC (source: EP KR)
C07C 67/03 (2013.01 - EP KR); C07C 67/54 (2013.01 - KR); Y02P 20/10 (2015.11 - EP)
C-Set (source: EP)
Citation (search report)
See references of WO 2011131643A2
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 2011131643 A2 20111027; WO 2011131643 A3 20111229; CN 102844292 A 20121226; CN 102844292 B 20140716; EP 2560943 A2 20130227; JP 2013525325 A 20130620; KR 20130051452 A 20130520
DOCDB simple family (application)
EP 2011056189 W 20110419; CN 201180019648 A 20110419; EP 11714782 A 20110419; JP 2013505444 A 20110419; KR 20127030034 A 20110419