C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 67/08 (2006.01) B01D 3/36 (2006.01) C07C 69/00 (2006.01) C07C 69/80 (2006.01)
Patent
CA 2746571
The invention relates to a method for producing carboxylic acid esters by reacting a reaction mixture, comprising a carboxylic acid and/or a carboxylic acid anhydride, and an alcohol in a reaction system having one or more reactors, wherein reaction water is distilled off as an alcohol/water azeotrope with the exhaust vapor. In addition, the reaction mixture is treated with superheated alcohol vapor. The method allows the production of esters having a low acid number.
L'invention concerne un procédé de production d'esters d'acide carboxylique consistant à faire réagir un mélange réactionnel qui contient un acide carboxylique et/ou un anhydride d'acide carboxylique et un alcool dans un système réactionnel composé d'un ou de plusieurs réacteurs, l'eau de réaction étant distillée avec la vapeur en tant que mélange azéotrope alcool/eau. L'invention est caractérisée en ce que le mélange réactionnel est traité avec de la vapeur d'alcool surchauffée. Ce procédé permet de produire des esters à faible indice d'acide.
Bey Oliver
Disteldorf Walter
Friese Katrin
Peters Jarren
Schaefer Thomas
Basf Se
Robic
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