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:
Oct. 11, 2022
Filed:
Sep. 03, 2019
Applicant:
Norsk Hydro Asa, Oslo, NO;
Inventors:
Assignee:
NORSK HYDRO ASA, Oslo, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25C 3/06 (2006.01); C25C 3/08 (2006.01);
U.S. Cl.
CPC ...
C25C 3/085 (2013.01);
Abstract
The present invention relates to a method and a material for establishing a cathode barrier layer in electrolysis cells for production of aluminum of Hall-Heroult type, the barrier layer can comprise minerals combined with a compound that lowers the melting temperature of the minerals, such as fluorides.