| 摘要 |
PROBLEM TO BE SOLVED: To provide a production process for 1,3-propanediol by hydration of acrolein in the presence of an ion-exchange resin, followed by hydrogenation of 3-hydroxypropionaldehyde, and an ion exchanger therefor. SOLUTION: A polyamine resin based on a cross-lined polyacrylamide matrix is allowed to react with acrylic acid, an acrylic acid derivative or a salt of anω-halogenoalkanoic acid and the resultant polyaminepolycarboxylic acid resin is used as a hydration catalyst. The ion exchanger catalyst is characterized by its extremely low volume change and high whole capacity when activated and can be used in high selectivity with high space time yield.
|
