Continuous process for the recovery of 2 ethylhexanal and a tert

Details Continuous process for the recovery of 2 ethylhexanal and a tert Continuous process for the recovery of 2 ethylhexanal and a tert

1992-05-22

1993-01-05

Lone, Werren B.

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

Organic compounds

Oxygen containing

203 91, 568449, 568463, 568464, C07C 4582

Patent

active

051772671

ABSTRACT:
Disclosed is a continuous process for the manufacture of 2-ethyl-2-(hydroxymethyl)hexanal wherein 2-ethylhexanal, formaldehyde and a tertiary amine are continuously fed to a reaction zone and crude product comprising an aqueous phase and an organic phase containing 2-ethyl-2-(hydroxymethyl)hexanal and 2-ethylhexanal is continuously removed from the reaction zone. Also disclosed are processes for (1) the azeotropic distillation of the organic phase of the crude product whereby unreacted 2-ethylhexanal is recovered and (2) the catalytic hydrogenation of the refined, organic phase of the crude product to produce 2-butyl-2-ethyl-1,3-propanediol.

REFERENCES:
patent: 4181810 (1980-01-01), Immel et al.
patent: 4408079 (1983-10-01), Merger et al.
patent: 4943663 (1990-06-01), Diekhaus et al.
patent: 5026920 (1991-07-01), Roeper et al.

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