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

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

1997-05-21

1999-04-06

Glass, Margaret W.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568605, 568465, 568460, C07C 4330

Patent

active

058921290

ABSTRACT:
A process for the preparation of 1,1,3-trialkoxypropane by acid-catalyzed reaction of acrolein with a C.sub.1 to C.sub.6 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.

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