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:
Mar. 30, 2021
Filed:
Nov. 27, 2017
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Timo Ott, Duisburg, DE;
Ingo Biertümpel, Duisburg, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 303/06 (2006.01); C07C 409/44 (2006.01); C07C 303/44 (2006.01); C07C 309/04 (2006.01); C07C 407/00 (2006.01);
U.S. Cl.
CPC ...
C07C 303/06 (2013.01); C07C 409/44 (2013.01); C07C 303/44 (2013.01); C07C 309/04 (2013.01); C07C 407/00 (2013.01);
Abstract
The present invention relates to an alkane-sulfonation process using alkane and sulfur trioxide, especially pure sulfur trioxide (100%) under solvent-free conditions in the presence of an initiator. It further relates to the use of a precursor which forms 'in-situ' an initiator for manufacturing of alkanesulfonic acids, especially methanesulfonic acids.