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. 13, 2026
Filed:
Oct. 31, 2022
Applicant:
Hatch Ltd., Mississauga, CA;
Inventors:
Robert John Fraser, Oakville, CA;
Evangelos Stamatiou, Toronto, CA;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
C01D 1/20 (2006.01); B01J 41/04 (2017.01); B01J 41/12 (2017.01); B01J 49/57 (2017.01); C01D 3/04 (2006.01); C01D 5/02 (2006.01);
U.S. Cl.
CPC ...
C01D 1/20 (2013.01); B01J 41/04 (2013.01); B01J 41/12 (2013.01); B01J 49/57 (2017.01); C01D 3/04 (2013.01); C01D 5/02 (2013.01); C01P 2006/40 (2013.01);
Abstract
A process for battery chemical production, where a sodium sulfate stream is treated with an ion exchange process to provide potassium sulfate and sodium chloride. The sodium chloride may be treated with a chlor-alkali to produce sodium hydroxide for use upstream in the battery chemical production process.