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:
Feb. 09, 2010
Filed:
Sep. 10, 2004
Fritz Gestermann, Leverkusen, DE;
Richard Malchow, Köln, DE;
Walter Hansen, Leverkusen, DE;
Gaby Sengstock, Leverkusen, DE;
Fritz Gestermann, Leverkusen, DE;
Richard Malchow, Köln, DE;
Walter Hansen, Leverkusen, DE;
Gaby Sengstock, Leverkusen, DE;
Bayer MaterialScience AG, Leverkusen, DE;
Abstract
A method is described for the electrolysis of an aqueous solution of hydrogen chloride or alkali metal chloride in an electrolysis cell. The cell includes at least of an anode half-element and an anode, a cathode half-element and a gas diffusion electrode as the cathode, and a cation exchange membrane for separating the anode half-element and the cathode half-element. A gas containing oxygen is supplied to the cathode half-element and excess gas containing oxygen is discharged from the cathode half-element. Excess gas containing oxygen discharged from the cathode half-element is subjected to catalytic oxidation of hydrogen.