Process for the preparation of 1,1,3-trialkoxypropane

A process for the preparation of 1,1,3-trialkoxypropane by acid-catalyzed reaction of acrolein with a C1 to C6 alcohol, which can be carried out well on a large scale and leads to a higher selectivity. The process involves (a) the reaction, in the presence of a solid acid catalyst which is insoluble...

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Bibliographic Details
Main Authors HOFEN; WILLI, HOEPP; MATHIAS, ARNTZ; DIETRICH, OHLINGER; HANS-PETER
Format Patent
LanguageEnglish
Published 06.04.1999
Edition6
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:A process for the preparation of 1,1,3-trialkoxypropane by acid-catalyzed reaction of acrolein with a C1 to C6 alcohol, which can be carried out well on a large scale and leads to a higher selectivity. The process involves (a) the reaction, in the presence of a solid acid catalyst which is insoluble in the reaction mixture, (b) a partial neutralization of the reaction mixture, using an amine or basic ion exchanger, and (c) specific recovery by distillation of the reaction mixture and recirculation of fractions containing useful materials; aqueous fractions containing recyclable useful materials are largely dehydrated by pervaporation prior to being recirculated.
Bibliography:Application Number: US19970859845