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:
May. 26, 2026
Filed:
Jul. 28, 2020
Applicant:
Basf SE, Ludwigshafen am Rhein, DE;
Inventors:
Marina-Eleni Stavrou, Ludwigshafen, DE;
Marcus Bechtel, Ludwigshafen, DE;
Rosario Mazarro Berdonces, Ludwigshafen, DE;
Frank Piepenbreier, Ludwigshafen, DE;
Chee Jian Chan, Ludwigshafen, DE;
Bjoern Kaibel, Ludwigshafen, DE;
Andreas Kempter, Ludwigshafen, DE;
Assignee:
BASF SE, Ludwigshafen am Rhein, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 303/06 (2006.01); C07C 303/44 (2006.01);
U.S. Cl.
CPC ...
C07C 303/06 (2013.01); C07C 303/44 (2013.01);
Abstract
Process for separating anhydrous methanesulfonic acid from a reaction mixture comprising methanesulfonic acid and sulfuric acid by distillation with at least three functional steps and the use of said methanesulfonic acid.