Patent ID: 6323362
Filing Date: 2001-11-27
Classification: C07C

Abstract:
A process for the continuous and simultaneous manufacture of at least two different acetates by at least two simultaneous transesterification reactions comprising continuously bringing into contact in the presence of a catalyst in a reaction zone:(i) an acetate of the formulaCH.sub.3 COOR (I)in which R is an alkyl radical, with(ii) at least two alcohols of formulaeR.sup.1 OH (II)andR.sup.2 OH (III)in which R.sup.1 and R.sup.2, are different, and are alkyl radicals with a linear or branched chain, or radicals of formulaR.sup.3 (OCH.sub.2 CR.sup.4 R.sup.5).sub.m --in which R.sup.3 is an alkyl radical, R.sup.4 and R.sup.5, being identical or different, are a hydrogen atom or an alkyl radical, and m is an integer of from 1 to 4to form a reaction mixture having a homogeneous liquid phase and produce in the reaction zone by at least two simultaneous transesterification reactions of (i) with (ii) at least two acetates of formulaeCH.sub.3 COOR.sup.1 (IV)andCH.sub.3 COOR.sup.2 (V)and continuously drawing off from said reaction zone said at least two acetates (IV) and (V) and continuously separating said at least two acetates (IV) and (V) from each other by at least twice successively distilling the reaction mixture present in the reaction zone.