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:
Jul. 25, 1978
Filed:
Oct. 12, 1976
Applicant:
Inventors:
Nicole Chillier-Duchatel, Sevres, FR;
Bernard Verger, Chevreuse, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25B / ; C25B / ;
U.S. Cl.
CPC ...
204 / ; 204129 ;
Abstract
The invention relates to a method and an electrochemical device capable of producing very pure oxygen. Air is made to react with a reduced form of anthraquinone 2-7 sodium disulphonate in order to obtain a peroxide of this compound which decomposes to an oxidized form and to hydrogen peroxide or water depending on the pH value of the medium, said hydrogen peroxide being decomposed to water, and the water being electrochemically oxidized thus releasing the oxygen, while said oxidized form is electrochemically reduced. The invention is used for the production of very pure oxygen suitable for purifying used water.