Process for the production of 1,3-propanediol

Details Process for the production of 1,3-propanediol Process for the production of 1,3-propanediol

1998-01-30

2000-10-31

Geist, Gary

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

Organic compounds

Oxygen containing

568862, 521 32, 521 36, C07C 2704, C07C 4500, C08F 520, C08G 520

Patent

active

061405434

ABSTRACT:
A process for the production of 1,3-propanediol by hydrating acrolein in the presence of an ion exchanger to form 3-hydroxypropionaldehyde includes reacting acrolein and water in a ratio by weight of 1:2 to 1:20 at 30.degree. to 120.degree. C. and a pressure in the range from 1 to 20 bar, in the presence of an ion exchange hydration catalyst. The ion exchanger and any unreacted acrolein are separated from the reaction mixture. The 3-hydroxypropionaldehyde is then catalytically hydrogenated in a liquid or gas phase using hydrogenation catalysts. The ion exchanger hydration catalyst includes polyamine/polycarboxylic acid resins produced by reacting polyamine resins based on a crosslinked polyacrylamide matrix with acrylic acid, acrylic acid derivatives or a salt of an .omega.-haloalkanoic acid. An ion exchanger includes reaction product of reacting a polyamine resin based on a crosslinked polyacrylamide matrix with acrylic acid, acrylic acid derivatives or .omega.-haloalkanoic acid salts.

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XP-002063242, Chemical Abstracts, "Synthesis and Properties of Ampholyte-Supports", vol. 96, No. 23 (Jun. 7, 1982), Abstract 199037c, p. 612.
XP-002061949, Chemical Abstracts, "Synthesis and Characterization of Polyacrylamide-acrylic Acid Resin and its Use for Treatment of Radioactive Liquid Waste", vol. 123, No. 26 (Dec. 25, 1995), Abstract 352823d.
XP-002063243, Chemical Abstracts, "Facilitated Transport of Carbon Dioxide Through Functional membranes Prepared by Plasma Graft Polymerization Using Amines as Carrier", vol. 125, No. 22 (Nov. 25, 1996), Abstract 279588r, p. 235.
XP-002061840, Database WPI, Week 9632, Derwent Publications Ltd., London, GB; Preparation of Hydroxyalkanal by Hydrated Unsaturated Aldehyde Presence Carboxylic Acid; (Jun. 4, 1996).

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