Process for the preparation of alkylene glycols

Details Process for the preparation of alkylene glycols Process for the preparation of alkylene glycols

2005-12-22

2008-10-14

Price, Elvis O. (Department: 1621)

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

Organic compounds

Oxygen containing

C568S872000

Reexamination Certificate

active

07435858

ABSTRACT:
A process for the production of alkylene glycol by hydrolysis of alkylene oxide with water is described wherein at least one reaction feed is first passed through a guard bed before entering a catalyst bed comprising hydrolysis catalyst.

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European Patent Office Search Report dated Nov. 3, 2005 for application 04258094.4.
Shvets, V.F. et al, “The Cause and Quantitative Description of Catalyst Deactivation in the Ethylene Oxide Hydration Process”, Chemical Engineering Journal, vol. 107, (2005), pp. 199-204; XP004816728 ISSN: 1385-8947.

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