logo

For the Inventor, By the Inventor

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.:

US 10173969 B1

PDFFull Text
Date of Patent:
Jan. 08, 2019

Filed:

Feb. 19, 2015

Production of aniline via anthranilate

Applicant:

Covestro Deutschland Ag, Leverkusen, DE;

Inventors:

Gernot Jaeger, Erkelenz, DE;

Jorgen Magnus, Dusseldorf, DE;

Amgad Salah Moussa, Cologne, DE;

Assignee:

COVESTRO DEUTSCHLAND AG, Leverkusen, DE;

Attorney:

Donald R. Palladino

Primary Examiner:

Pancham Bakshi

Assistant Examiner:

Mark R Luderer

Int. Cl.
CPC ...
C12P 7/40 (2006.01); C12P 13/00 (2006.01); C07C 209/68 (2006.01); C07C 209/78 (2006.01); C07C 209/84 (2006.01); C07C 263/10 (2006.01);
U.S. Cl.
CPC ...
C07C 263/10 (2013.01); C07C 209/68 (2013.01); C07C 209/78 (2013.01); C07C 209/84 (2013.01); C12P 7/40 (2013.01); C12P 13/00 (2013.01); C12P 13/001 (2013.01);
Abstract

The invention relates to a method for producing aniline, comprising the steps of: a) providing o-aminobenzoate, wherein said o-aminobenzoate comprises anthranilate anion and a suitable cation, b) converting said anthranilate anion to aniline by thermal decarboxylation in the presence or absence of a catalyst, c) extracting the aniline produced in step b) in an organic solvent at least once, and d) purifying the aniline produced in steps b) and c) by distillation, wherein said distillation produces aniline and a water phase.

Find Patent Forward Citations

Jaeger, Gernot. (2019). Production of aniline via anthranilate (U.S. Patent No. 10173969). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10173969

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…