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:
Jun. 04, 2019
Filed:
Jan. 08, 2016
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Alexander Duefert, Ludwigshafen, DE;
Rolf Pinkos, Bad Duerkheim, DE;
Wolf-Steffen Weissker, Lambsheim, DE;
Assignee:
BASF SE, Ludwigshafen am Rhein, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 307/08 (2006.01); C07C 29/149 (2006.01); C07D 307/33 (2006.01); C12P 7/18 (2006.01); C12P 17/04 (2006.01);
U.S. Cl.
CPC ...
C07D 307/08 (2013.01); C07C 29/149 (2013.01); C07D 307/33 (2013.01); C12P 7/18 (2013.01); C12P 17/04 (2013.01);
Abstract
Processes for preparing tetrahydrofuran and/or butane-1,4-diol and/or gamma-butyrolactone are provided, including a process for preparing tetrahydrofuran (THF) from succinic acid that has been obtained by conversion of biomass, by conversion of the succinic acid to succinic anhydride, and hydrogenation of the succinic anhydride, with removal of certain secondary components.