Method of preparing 1,3-propanediol

Details Method of preparing 1,3-propanediol Method of preparing 1,3-propanediol

1990-08-03

1991-05-14

Evans, J. E.

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

Organic compounds

Oxygen containing

568458, C07C 2914, C07C 3120, C07C 4719, C07C 4564

Patent

active

050157892

ABSTRACT:
A method for preparing 1,3-propanediol is disclosed which comprises the hydration of acrolein in the presence of an acidic cation exchanger resin and the hydrogenation of the 3-hydroxypropionaldehyde obtained in the first stage. The volume-time yield was able to be increased in the hydration stage by using a cation exchanger resin with phosphonic acid groups, preferably a cation exchanger with chelating aminophosphonic acid groups. The hydrogenation catalyst can be repeatedly reused without appreciable loss of activity.

REFERENCES:
patent: 2421451 (1947-06-01), Balcar
patent: 2434110 (1948-01-01), Hatch et al.
patent: 2638479 (1953-05-01), Ballard et al.
patent: 3518310 (1970-06-01), Lutz
patent: 3536763 (1970-10-01), Eleuterio et al.

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