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:
Aug. 13, 2019
Filed:
Oct. 06, 2016
Applicant:
Synvina C.v., Amsterdam, NL;
Inventors:
Nicolas André Vélu Popoff, Amsterdam, NL;
Jan Cornelis van der Waal, Amsterdam, NL;
Assignee:
Synvina C.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 307/02 (2006.01); C07D 307/33 (2006.01); B01J 21/04 (2006.01); B01J 21/06 (2006.01); B01J 21/08 (2006.01); B01J 21/12 (2006.01); B01J 23/04 (2006.01); B01J 23/72 (2006.01); B01J 23/755 (2006.01); B01J 23/80 (2006.01); B01J 23/89 (2006.01);
U.S. Cl.
CPC ...
C07D 307/33 (2013.01); B01J 21/04 (2013.01); B01J 21/063 (2013.01); B01J 21/066 (2013.01); B01J 21/08 (2013.01); B01J 21/12 (2013.01); B01J 23/04 (2013.01); B01J 23/72 (2013.01); B01J 23/755 (2013.01); B01J 23/80 (2013.01); B01J 23/892 (2013.01); B01J 23/8966 (2013.01);
Abstract
Gamma-valerolactone is prepared from a levulinic acid ester in a continuous process where a stream of the levulinic acid ester together with a gaseous stream of a hydrogen-containing gas is contacted with a hydrogenation catalyst, where the levulinic acid ester is in the liquid phase, and where the hydrogenation catalyst is a solid particulate catalyst including at least one hydrogenating metal, supported on an oxide carrier.