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:
Jan. 14, 2025
Filed:
Jun. 17, 2020
Evonik Operations Gmbh, Essen, DE;
Johannes Wefer, Singapore, SG;
Hans-Joachim Hasselbach, Gelnhausen, DE;
Tobias Winkler, Hanau, DE;
Danny De Corte, Sint-Niklaas, BE;
Bernd Drapal, Alzenau, DE;
Imad Moussallem, Hanau, DE;
Christian Renner, Gruendau, DE;
Christian Rückriegel, Biebergemuend, DE;
Evonik Operations GmbH, Essen, DE;
Abstract
The invention relates to a single cycle process for preparing D,L-methionine from an alkali methioninate solution obtained by alkaline hydrolysis of 5-(2-methylmercaptoethyl)hydantoin, in which the D,L-methionine is obtained by neutralizing the alkali methioninate solution with carbon dioxide at elevated temperature and subsequently crystallizing D,L-methionine in the presence of seed crystals.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile