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. 23, 1982
Filed:
May. 29, 1980
Peter C Foller, Sunnyvale, CA (US);
Charles W Tobias, Orinda, CA (US);
Regents of the University of California, Berkeley, CA (US);
Abstract
Very high yields of ozone are produced in an electrolytic process. As high as 52% current efficiencies are secured in electrolytic cells wherein the electrolyte is water and highly electronegative anions. Anions having a so-called 'composite electronegativity' of 17.5 or higher, are utilized in the electrolyte solution. The fluoroanions and in particular, the hexafluoro-anions are especially preferred. The anion producing compounds may be added to the electrolyte either in the acid form or in the form of salts. Electrolysis is carried out at room temperatures or at lower temperatures, e.g. down to the freezing point of water. Preferred anode materials for use in the electrolytic cells are either platinum or lead dioxide, especially lead dioxide in the beta crystalline form. The platinum metals, carbon, or nickel and its alloys maybe used as hydrogen-evolving cathodes. Alternately, an air or oxygen deploarized cathode may be employed which would greatly reduce the cell voltage and enhance the overall energy efficiency of the process.