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:
Dec. 31, 2024
Filed:
May. 12, 2020
Applicant:
Arkema France, Colombes, FR;
Inventor:
Jean-Marc Sage, Pierre-Benite Cedex, FR;
Assignee:
Arkema France, Colombes, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 21/16 (2006.01); B01D 3/00 (2006.01);
U.S. Cl.
CPC ...
C01B 21/16 (2013.01); B01D 3/009 (2013.01);
Abstract
The present invention relates to an improved process for preparing hydrazine hydrate from the azine of methyl ethyl ketone obtained from methyl ethyl ketone by oxidizing ammonia with hydrogen peroxide in the presence of an activator, characterized in that it comprises a step of recycling the methyl ethyl ketone oxime purge.
Sage, Jean-Marc. (2024). Process for preparing hydrazine hydrate with oxime recycling (U.S. Patent No. 12180070). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12180070
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile