Purification of chemical 1,3-propanediol

Details Purification of chemical 1,3-propanediol Purification of chemical 1,3-propanediol

2006-05-02

2006-05-02

Price, Elvis O. (Department: 1621)

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

Organic compounds

Oxygen containing

C568S868000, C568S869000, C568S852000, C568S854000

Reexamination Certificate

active

07038092

ABSTRACT:
Disclosed is a process comprising contacting chemical 1,3-propanediol with hydrogen in the presence of a hydrogenation catalyst. Preferably, the chemical 1,3-propanediol, before the contacting has an initial color and, after the contacting, has a color that is lower than the initial color.

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International Search Repon; Date Mailed-Jun. 3, 2005.
Written Opinion: Date Mailed-Jun. 3, 2005.

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