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:
Sep. 07, 2021
Filed:
Apr. 25, 2018
Applicant:
Solvay SA, Brussels, BE;
Inventors:
Jean-Marie Blaude, Brussels, BE;
Benoit Gosselin, Ophain, BE;
Alain Lambert, Beauvechain, BE;
Matthias Marek, Offenau, DE;
Harald Krueger, Bad Wimpfen, DE;
Jan Schostag, Bad Rappenau, DE;
Miriam Heyd, Bad Rappenau, DE;
Assignee:
Solvay SA, Brussels, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/42 (2006.01); C01B 17/88 (2006.01); C01B 17/90 (2006.01); C07C 51/43 (2006.01); C07C 51/56 (2006.01); C07C 51/573 (2006.01); C07C 53/00 (2006.01); C07C 53/16 (2006.01); C07C 53/18 (2006.01);
U.S. Cl.
CPC ...
C07C 51/42 (2013.01); C01B 17/88 (2013.01); C01B 17/905 (2013.01); C07C 51/43 (2013.01); C07C 51/56 (2013.01); C07C 51/573 (2013.01); C07C 53/00 (2013.01); C07C 53/16 (2013.01); C07C 53/18 (2013.01);
Abstract
The present invention concerns a process for the reduction of content of carboxylic acids and derivatives thereof in oleum, disulfuric acid or concentrated sulfuric acid. The invention further concerns a process for the manufacture of carboxylic acid anhydrides comprising the process for the reduction of content of carboxylic acids and derivatives thereof from oleum, disulfuric acid or concentrated sulfuric acid.