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:
Mar. 13, 2001
Filed:
Apr. 13, 1987
Jackson E. Harrar, Castro Valley, CA (US);
Roland Quong, Oakland, CA (US);
Lester P. Rigdon, Livermore, CA (US);
Raymond R. McGuire, Brentwood, CA (US);
The United States of America as represented by the Department of Energy, Washington, DC (US);
Abstract
A method and apparatus are disclosed for a large scale, electrochemical production of anhydrous nitric acid and N,O,. The method includes oxidizing a solution of N,O,/aqueous-HNO,at the anode, while reducing aqueous HNO,at the cathode, in a flow electrolyzer constructed of special materials. N,O,is produced at the cathode and may be separated and recycled as a feedstock for use in the anolyte. The process is controlled by regulating the electrolysis current until the desired products are obtained. The chemical compositions of the anolyte and catholyte are monitored by measurement of the solution density and the concentrations of N,O,.