The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2015
Filed:
Dec. 28, 2012
E I Du Pont DE Nemours and Company, Wilmington, DE (US);
Alan Martin Allgeier, Wilmington, DE (US);
Wathudura Indika Namal De Silva, Wilmington, DE (US);
Ekaterini Korovessi, Wilmington, DE (US);
Carl Andrew Menning, Newark, DE (US);
Joachim C Ritter, Wilmington, DE (US);
Sourav Kumar Sengupta, Wilmington, DE (US);
Christina S Stauffer, Wilmington, DE (US);
E I du Pont de Nemours and Company, Wilmington, DE (US);
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.