C - Chemistry – Metallurgy – 25 – B
Patent
C - Chemistry, Metallurgy
25
B
C25B 11/06 (2006.01) C25B 11/04 (2006.01)
Patent
CA 2347728
The invention concerns a cathode comprising an electrically conductive substrate made of one of the group of elements consisting of titanium, nickel, tantalum, zirconium, nobium, iron and alloys thereof, coated with an intermediate layer of oxides of titanium and of a precious metal and with an outer layer of metal oxides comprising titanium, zirconium and a precious metal. The invention concerns also the use of such cathode for the electrolysis of solutions, notably for the electrolysis of aqueous solutions of alcaline metal chlorides.
L'invention concerne une cathode comprenant un substrat électro-conducteur en un élément choisi dans le groupe formé de titane, nickel, tantale, zirconium, nobium, le fer et de leurs alliages, revêtu d'un couche intermédiaire d'oxydes à base de titane et d'un métal précieux et d'une couche externe d'oxydes métalliques comprenant du titane, zirconium et un métal précieux. L'invention concerne également l'utilisation d'une telle cathode pour l'électrolyse de solutions, notamment pour l'électrolyse de solutions aqueuses de chlorures de métaux alcalins.
Andolfatto Francoise
Joubert Philippe
Atofina
Robic
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