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:
Nov. 07, 1995
Filed:
Aug. 25, 1994
Applicant:
Inventors:
Oronzio de Nora, Milan, IT;
Antonio Nidola, Milan, IT;
Ulderico Nevosi, Milan, IT;
Carlo Traini, Milan, IT;
Assignee:
De Nora Permelec S.p.A., , IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25C / ; C25C / ; C25C / ;
U.S. Cl.
CPC ...
2041 / ; 204114 ; 204120 ;
Abstract
A process for the electrolytic recovery of metals from solutions containing metal ions and fluorides and/or anionic flurocomplexes in diaphragmless cells wherein the deposition of the metals at the cathodes and the oxygen evolution at the anodes is effected, the improvement comprising the use of insoluble anodes made of sintered powders of doped tin dioxide optionally provided with coating of zirconyl phosphate and metal oxides which prevents the deposition of metal oxides on the anode surface and catalyze the oxygen evolution reaction.