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:
Jul. 07, 2026
Filed:
Sep. 27, 2021
Applicant:
Avantium Knowledge Centre B.v., Amsterdam, NL;
Inventors:
Assignee:
Avantium Knowledge Centre B.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 23/92 (2006.01); B01J 23/30 (2006.01); B01J 38/52 (2006.01); B01J 38/60 (2006.01); C07C 29/60 (2006.01);
U.S. Cl.
CPC ...
B01J 23/92 (2013.01); B01J 23/30 (2013.01); B01J 38/52 (2013.01); B01J 38/60 (2013.01); C07C 29/60 (2013.01);
Abstract
A process for recovering and regenerating a tungsten compound suitable as co-catalyst in converting carbohydrates with hydrogen into alkylene glycols and polyols, from ash comprising one or more tungsten-oxygen components (e.g. comprising a tungstate and/or tungstic acid). Such ash is obtainable from burning a liquid mixture comprising alkylene glycols and/or polyols and sodium tungstate and/or tungstic acid.