Hydrogenation of chemically derived 1,3-propanediol

Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing

Reexamination Certificate

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C568S852000, C568S854000, C568S869000

Reexamination Certificate

active

07084311

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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