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. 06, 1976
Filed:
Oct. 23, 1974
Bertel Kastening, Julich, DT;
Wolfgang Faul, Julich, DT;
Abstract
A method of making an electrode for preparing hydrogen peroxide, according o which active carbon during application of heat is mixed with a binder and a hydrophobic substance of addition. The thus obtained mixture is applied to an electrically conductive carrier structure. More specifically, active carbon is glowed in a vacuum at a temperature above 900.degree., preferably at a temperature of from 1000.degree. to 1250.degree.C. After the active carbon powder has been cooled in a vacuum, the active carbon powder is mixed with a solvent containing the binder and the hydrophobic substance of addition. The thus obtained mixture is applied to the electric conductive carrier substance. Finally, the mixture thus applied to the carrier structure is dried. The thus produced electrode is arranged in an electrolytic cell filled with an electrolyte. This cell comprises a gas permeable carbon cathode communicating with a gas chamber in which a pressure higher than atmospheric pressure prevails and also comprises an anode separated from the carbon cathode by a diaphragm. As carbon electrode there is used a carrier structure coated with active carbon powder which by means of a non-coated side facing away from the gas chamber rests on a metallic grate.