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:
Oct. 24, 2017
Filed:
Feb. 25, 2014
Applicant:
Haldor Topsøe A/s, Kgs. Lyngby, DK;
Inventors:
Esben Taarning, Frederiksberg, DK;
Martin Spangsberg Holm, Oxford, GB;
Assignee:
Haldor Topsoe A/S, Lyngby, DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 45/86 (2006.01); C07C 67/42 (2006.01); C07C 29/14 (2006.01); C07C 45/85 (2006.01); C07C 29/143 (2006.01); C07C 209/24 (2006.01); C07H 3/02 (2006.01); A23L 5/41 (2016.01);
U.S. Cl.
CPC ...
C07C 45/85 (2013.01); A23L 5/41 (2016.08); C07C 29/143 (2013.01); C07C 67/42 (2013.01); C07C 209/24 (2013.01); C07H 3/02 (2013.01); A23V 2002/00 (2013.01); Y02P 20/127 (2015.11);
Abstract
A process for reducing the percentage by weight of formaldehyde present in a composition comprising glycolaldehyde, wherein formaldehyde is transformed into one or more formaldehyde acetal(s) and removed from the reactive distillation reaction solution by reactive distillation in the presence of at least one alcohol and a catalyst.