The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 27, 2001
Filed:
Apr. 24, 2000
Philippe Lalanne-Magne, Saint Mitre les Remparts, FR;
Bruno Grenouiller, Martigues, FR;
Daniel Brun-Buisson, Istres, FR;
BP Chemicals Limited, London, GB;
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 formula CH,COOR in which R is an alkyl radical, with (ii) at least two alcohols of formulae R,OH and R,OH in which R,and R,, are different, and are alkyl radicals with a linear or branched chain, or radicals of formula R,(OCH,CR,R,),— in which R,is an alkyl radical, R,and R,, being identical or different, are a hydrogen atom or an alkyl radical, and m is an integer of from 1 to 4 to 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 formulae CH,COOR,and CH,COOR,and continuously drawing off from the reaction zone the at least two acetates and continuously separating the at least two acetates from each other by at least twice successively distilling the reaction mixture present in the reaction zone.