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:
Apr. 23, 1985
Filed:
Feb. 21, 1984
Applicant:
Inventors:
Assignee:
BBC Brown, Boveri & Company, Limited, Baden, CH;
Primary Examiner:
Int. Cl.
CPC ...
C25B / ;
U.S. Cl.
CPC ...
502325 ; 502101 ; 502349 ; 2042 / ;
Abstract
A catalytic powder for coating an anode consisting essentially of 2-45 mol % of RuO.sub.2, 2-45 mol % of IrO.sub.2 and 10-96 mol % of SnO.sub.2. The powder has a rutile crystal type, at least partially as a mixed oxide and has uniform lattice parameters which lie between the values of RuO.sub.2 and IrO.sub.2 and the value of SnO.sub.2. This catalytic powder is prepared by treating H.sub.2 IrCl.sub.6.m H.sub.2 O, RuCl.sub.3.n H.sub.2 O and SnCl.sub.2, wherein m is between 4.1 and 5.5 and n is between 2.5 and 3.85, with an alcohol. The resulting solution is then evaporated. The powder obtained is dried and ignited for 1/2 to 6 hours between 400.degree.-500.degree. C. and then cooled.