Process for preparing 1, 6-hexanediol
AssigneeE. I. Du Pont de Nemours and Company
InventorsAlan Martin Allgeier, Namal Desilva, Ekaterini Korovessi, Carl Menning, Joachim C. Ritter, Sourav Kumar Sengupta, Christina S. Stauffer
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Abstract
Disclosed are processes for preparing 1,6-hexanediol and synthetic intermediates useful in the production of 1,6-hexanediol from renewable biosources. In one embodiment, a process comprises contacting levoglucosenone with hydrogen in the presence of a first hydrogenation catalyst at a first temperature to form product mixture (I); and heating product mixture (I) in the presence of hydrogen and a second hydrogenation catalyst at a second temperature to form product mixture (II) which comprises 1,6-hexanediol.
Claims12
A process comprising:
- a) contacting levoglucosenone with hydrogen in the presence of a first hydrogenation catalyst at a first temperature between about 25° C. and about 150° C. to form product mixture (I);
- and
- b) heating product mixture (I) in the presence of hydrogen and a second hydrogenation catalyst at a second temperature between about 120° C. and about 260° C. to form product mixture (II).
Dependencies are inferred from the claim text.